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Will the closure of Gfycat affect MO?

Gfycat is a hosting service for (animated) GIF files, which will close on September 1st, 2023. Since some MO users might have included GIF files hosted on Gfycat in their posts, does the service's ...
Alex M.'s user avatar
  • 5,357
5 votes
2 answers
189 views

Why do `* *`s and `** **`s stop being recognised at some point, and how can I fix the resulting inadvertent vandalism?

I recently submitted an edit to Another notion of exactness: how to refine it, and where does it fit? to replace hand-rolled commutative diagrams with AMScds, since ...
LSpice's user avatar
  • 12k
40 votes
0 answers
1k views

Moderation strike update 2

There has been movement at the station. Reposting an update on how the negotiations are going from this answer on meta.StackExchange, which also gives details on other updates over the past fortnight. ...
David Roberts's user avatar
  • 34.8k
3 votes
1 answer
672 views

Writing a bar on top of a number

I want to write a question in which I have a bar on top of a number or letter to represent a recurring digit. however, I can't find any options to write the particular digit, even when I search the ...
Super Coder's user avatar
2 votes
1 answer
106 views

Custom filter is stuck on

I had a custom filter for questions in tag co.combinatorics with no answer. It seems to be "stuck" in the sense that if I go to the "generic" page for that tag, https://...
Peter Taylor's user avatar
  • 6,976
2 votes
1 answer
354 views

How can I improve my posts to attract responses?

This is a follow up to this post: I haven’t received a response from either this or this post, since, according to @Asaf Karigila: "The longer, more detailed, more effort that is required to ...
Arbuja's user avatar
  • 1
48 votes
0 answers
951 views

Moderation strike update 1

As announced a little while back, MathOverflow moderators are participating in a network-wide moderation strike (currently at 121 moderators striking; see the background post for more details). The ...
David Roberts's user avatar
  • 34.8k
2 votes
1 answer
304 views

Why suspend a user for 100 years instead of deleting his/her account?

I have just discovered that users can be suspended for 100 years. This raises the question: why suspend for such a long duration (which practically means banning), instead of simply banning (i.e. ...
Alex M.'s user avatar
  • 5,357
1 vote
0 answers
93 views

Making my post easier to read

I tried to make this post easier to read but find it extremely difficult to get through grammatical-wise. I'm wondering if there is someone who can correct the grammar of this post or rewrite the ...
Arbuja's user avatar
  • 1
29 votes
4 answers
1k views

What would be the disadvantages of a (hypothetical) MOexit?

The hypothetical possibility of MO leaving StackExchange was mentioned here on meta.MO a few years ago and was mentioned again recently. In a comment, Sam Hopkins asked what I think is a good ...
Timothy Chow's user avatar
  • 80.3k
10 votes
2 answers
325 views

What is the tag [derivations] for?

Since the tag derivations has no usage guidance at the moment, I do not know when it should be used, which is unfortunate.
Rodrigo de Azevedo's user avatar
68 votes
7 answers
8k views

At what point should MO recognise it needs to leave Stack Exchange Inc?

Edit Please note this is not me posting with my moderator hat on (I've signed the letter), and I didn't discuss this with the mod team before posting this. It's not within shouting distance of being ...
David Roberts's user avatar
  • 34.8k
89 votes
3 answers
2k views

Stack Exchange moderation strike

You may or may not have heard that there are some controversies around moderation on the network, specifically in relation to the moderation of GPT-produced posts, but more generally around lack of ...
Ben Webster's user avatar
  • 44.3k
7 votes
1 answer
199 views

Having the MO Mathjax parser recognise \( \) is a regex away

@IsabelBeckenbach discovered why \( \) isn't accepted as a math-mode delimiter on MO. I'd always thought it was a design choice, but apparently it's just a mis-...
LSpice's user avatar
  • 12k
35 votes
1 answer
686 views

Opt out of the new upvote/downvote buttons?

I guess most of you have noticed by now the new upvote/downvote buttons. This seems to be in line with all the other SE sites (though I admit I haven't checked each and every one of them). Does MO ...
M.G.'s user avatar
  • 6,996
2 votes
1 answer
274 views

Clarifying an answer that was deleted by moderators

I recently posted a controversial answer to a question, then spent a few days off site life-tending while things cooled off. When I returned with the intent of seeing how the controversy had been ...
Alec Rhea's user avatar
  • 9,125
26 votes
2 answers
1k views

Policy toward GPT-generated conjectures?

The recent MO post, A number theoretic conjecture by Chat GPT, posed a conjecture that was generated by ChatGPT. In my opinion, it was not a particularly interesting conjecture. For me at least, the ...
Timothy Chow's user avatar
  • 80.3k
6 votes
1 answer
223 views

My gravatar has changed

My automatically generated Gravatar has changed. Is that normal? I thought they were supposed to be permanent. I used to have a purple pattern IIRC, now it is light blue, a color I have never seen. It ...
Federico Poloni's user avatar
17 votes
1 answer
586 views

imgur will remove some content soon. Does MathOverflow need to save images?

It has been reported that "Hosting site Imgur will remove explicit and anonymous content next month". Are there possibly some images linked in MathOverflow questions or answers, attached to ...
Zach Teitler's user avatar
  • 6,227
2 votes
0 answers
99 views

Some arrows in commutative diagrams in comments are wrongly interpreted as @-notifications; and a bonus question about CDs on MMO

I left the following comment on Pullbacks in this category of vector spaces are intersections: Are the morphisms in your category isometries? Otherwise, I'm not sure why the category is left ...
LSpice's user avatar
  • 12k
4 votes
1 answer
234 views

Looking for an answer (written by Thurston = user9062)

I recall that Thurston answered a question, showing that a particular graph braid group is the fundamental group of a three-manifold. I even recall that the answer proved that the three-manifold was ...
Sam Nead's user avatar
  • 27k
7 votes
0 answers
84 views

The citation helper picks up a backlink to an MO answer when a DOI link is unavailable

In the citation helper, I searched for "Lectures on the approach to Iwasawa theory for Hasse-Weil L-functions via BdR". The unique result that shows up is the following (I've only edited two ...
The Amplitwist's user avatar
9 votes
1 answer
455 views

On the tag [bitcoins]

Since several questions under the tag bitcoins have nothing to do with Bitcoin per se, but, rather, are related to proof of work, why not rename the tag cryptocurrencies or proof-of-work?
Rodrigo de Azevedo's user avatar
7 votes
1 answer
524 views

Repeated re-open/close votes (Tate conjecture)

The question Tate conjecture (Proved?) was asked yesterday, and quite quickly closed; it was then re-opened, and then closed (by, I think, a different set of 5). Questions about proofs of correctness ...
Carl-Fredrik Nyberg Brodda's user avatar
0 votes
0 answers
192 views

Difference between Mathematics SE and MathOverflow

If I post a question that I invented myself on Mathematics SE, I receive comments like "did you do homework?" and, eventually, "why do you ask if you know?". Fair enough. It seems ...
FirstName LastName's user avatar
9 votes
3 answers
490 views

What should we call a tag on point-free topology?

The tag currently used for point-free topology (aka “pointless” topology) is “locales”. I think the name is a bit restrictive: while writing this question (which, indeed, does not contain the word “...
Gro-Tsen's user avatar
  • 30.8k
24 votes
2 answers
812 views

Revisiting our policies on thank-you comments

Despite the little notice in the comments section telling us that comments along the lines of 'thank you' aren't welcome because they don't move the discussion forward mathematically, I have always ...
Alec Rhea's user avatar
  • 9,125
3 votes
0 answers
278 views

mathcal notation fails to render in Chrome

I recently noticed that "\mathcal" no longer renders. Example post but it renders fine in Safari Chrome: 111.0.5563.146 (Official Build) (x86_64) Safari: Version 16.4 (18615.1.26.11.22) ...
Yaroslav Bulatov's user avatar
-3 votes
1 answer
249 views

Rule against asking the same question that was once asked in the past (on another forum, yet)

In its relatively early days, MO was an organic and dynamic website — it encouraged active discussion among its members, that in almost all cases was extremely fruitful. But now, even if a similar ...
Daniel Asimov's user avatar
4 votes
2 answers
91 views

Can’t vote to close question as duplicate of question without an answer

I tried to vote to close Einstein problem; on mirror symmemtry as a duplicate of Aperiodic monotile without reflections?. But the software gave me an error I wasn’t expecting: it said because the ...
Sam Hopkins's user avatar
  • 23.1k
-5 votes
2 answers
325 views

Is there a penalty for merely looking at a question, comments and an answer?

Recently I have lost 2 reputation points for merely looking at a question, comments and an answer (1 point for reading the question "Large cardinals in $ZF$ + $DC$ + $AD$, and 1 point for reading ...
Thomas Benjamin's user avatar
23 votes
1 answer
799 views

Update on "Who owns my MathOverflow posts?"

I saw the question previously asked in: Who owns my MathOverflow posts? Unfortunately, I was not able to get a clear answer by reading the responses to that question, as other people had commented ...
Mahdi Majidi-Zolbanin's user avatar
3 votes
1 answer
137 views

Can I see my flaggings?

Is there anywhere a list of questions, answers or comments that I have flagged? I believe a list of such, together with my explanations why did I flag this, should be available, but I could not find ...
მამუკა ჯიბლაძე's user avatar
5 votes
1 answer
122 views

Why is the wrong username showing up on a CW answer after a user changes names?

An answer to Interesting examples of vacuous / void entities was written, and only edited by, @JonasLinssen: However, the answer shows up as having been written by @PrudiiArca: The text "...
LSpice's user avatar
  • 12k
3 votes
0 answers
57 views

Cannot "Mark all as read" under very specific circumstances

This might deserve to be closed; it seems to be a bug, but a very, very minor one. The conditions under which I observed it were rather specific. I'm not sure which of the conditions were important, ...
LSpice's user avatar
  • 12k
4 votes
0 answers
70 views

MathJax in edited question title gets badly mis-parsed in diff view

A recent question received an edit to its MathJax, including in the title. Viewing the diff in the edit history, the edited MathJax in the title gets very badly mis-parsed in the diff view, as shown ...
Peter LeFanu Lumsdaine's user avatar
24 votes
2 answers
853 views

Kitty can’t fix it — Old questions inaccessible for logged-in users, giving “unexpected error”

For the past few days, any attempt to access the question Collecting proofs that finite multiplicative subgroups of fields are cyclic results in an internal server error: It seems the poor kitten ...
Emil Jeřábek's user avatar
3 votes
0 answers
161 views

In Safari on macOS, a numbered list beginning with a displayed equation swallows the number

This bug report did not originally mention the platform and the renderer. I originally put them at the end, but it occurs to me that they're more useful up front. Thanks to @DavidRoberts and @...
LSpice's user avatar
  • 12k
3 votes
0 answers
71 views

AMScd columns not aligning

The code \require{AMScd}\begin{CD} 0 @>>> \mathbf D(C) \\ 0 @>>> M \end{CD} produces $$\require{AMScd}\begin{CD} 0 @>>> \mathbf D(C) \\ ...
LSpice's user avatar
  • 12k
2 votes
0 answers
90 views

Would undeleting questions increase the positive question record?

I came to know that to have a positive question record the total number of questions (including deleted ones) must be at least double the sum of (deleted, downvoted, and closed) questions. If a ...
Zuhair Al-Johar's user avatar
7 votes
1 answer
555 views

The number of MO users

Is there any statistics/diagram that shows and compares the number of MO users in the course of time?
Ali Taghavi's user avatar
8 votes
0 answers
337 views

2022: a year in moderation

As we say goodbye to the old year and welcome the new one, we have a tradition of sharing moderation stats for the preceding calendar year. As most of you here are aware, sites on the Stack Exchange ...
JNat's user avatar
  • 101
7 votes
0 answers
174 views

How is TeX rendered in edit summaries?

I recently edited a question Dynkin type classification for 2-dimensional hypersurfaces in non-commutative space, and entered as my edit summary "$<x,y>$ -> $\langle x,y\rangle$" <...
LSpice's user avatar
  • 12k
0 votes
1 answer
369 views

MathOverflow in the classroom

My belief is that it is legitimate to cite some posts of the main site MathOverflow in the classroom of some course. Under this assumption I've wondered about the following question. I don't know ...
user142929's user avatar
18 votes
0 answers
578 views

Posting multiple "answers" to an already answered question

This question was asked and correctly answered three weeks ago. Since then another user has posted, as of today, five other "answers" describing his thoughts about related questions, ...
Nik Weaver's user avatar
  • 42.4k
1 vote
0 answers
97 views

Should this question have been CW?

Yesterday I asked a big-list question (Examples of errors in computational combinatorics results). The question is naturally big-list because it asks for various examples. Now I am not quite familiar ...
Jukka Kohonen's user avatar
0 votes
0 answers
128 views

Gaining points for posting

How do I earn 50 points to comment if I am not allowed to comment or post? So my problem is as described as far you can see.
Buster Solomon's user avatar
3 votes
1 answer
151 views

Spoiler mechanism not working

In a recent answer I've tried to hide some text. Unfortunately, something seems broken. Here's the not-so-hidden text: ! Let $X$ be the set of complete theories that satisfy "everything is ...
Noah Schweber's user avatar
13 votes
6 answers
2k views

Let us wear hats

Many of the other stackexchange sites enable a festive wintertime custom every year in late December, the Winter Bash, in which user profiles are accommodated with fanciful hats, earned for various ...
Joel David Hamkins's user avatar
4 votes
0 answers
77 views

Drop-down lists

Would it be possible to have markdown drop-down lists in MO? I think that hiding lengthy examples, components of long proofs, edited out text etc., inside such menus could add readability.
Yaakov Baruch's user avatar

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