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Traditionally, MathOverflow moderators only delete comments that are highly problematic. Even in that case, we copied the entire deleted comment thread to tea.mathoverflow.net. Since migrating to the ...

I am not that active on MathOverflow but I notice that almost every off-topic question is closed within an hour. Why is a flag (if you lack of reputation) or a close vote (and in both cases a comment) ...

It may happen that a question has zero answers, but is actually already answered satisfactorily in a comment. An example is this question. I think this is somewhat misleading, as the "0 answers" ...

After the transition to MO 2.0, I noticed an increased influx of anonymous users, with user names like user####. Of course, people can have all kinds of reasons to ...

I asked the question Fourier series is to Fourier transform what Laurent series is to …? over at MSE, since that's where my questions usually belong to. But since I couldn't find any resources on it, ...

Being a European, I doubtless do not fully understand the associations of the Tumbleweed badge that I have just received. Is there a MO consensus about the appropriate reaction?

I was just asking Is it appropriate to ask for references and point to a blog with the same question and started to read http://blog.stackoverflow.com/2011/07/its-ok-to-ask-and-answer-your-own-...

I wonder if the community would find it appropriate if I ask a question like " Is this or that known? It would be interesting for this and that reason. For details see our blog "blah" where we ask ...

Maybe some context in the beginning. It is my second year in university so I am far away to be good enough to answer questions here, but from time to time I enjoy reading questions and answers. I ...

Why do backticks appear in the title of the following question? Is $ \sum\limits_{n=0}^\infty x^n / \sqrt{n!} $ positive? Is that the expected behaviour? I foolishly attempted to edit the backticks ...

After a few hours of not being able to reach meta.mathoverflow.net, (possibly due to DNS?), I resorted to asking a question about it on the main site. Later I posted something to a chat room, and ...

Moderators have started incorporating the old faq material in the new help system. It wasn't a perfect fit, a lot of stuff is no longer relevant, redundant, missing or broken. You can help by going ...

The purpose of this post is, first, to raise awareness (as this, reasonably, might not be clear) that the way some (and it seems to me the number is growing) use MathJax to create 'white space' (or to ...

If you go to the bottom of any page in the SE network (e.g. this one!), you'll see a list of SE sites. In particular there's a link to MathOverflow, that is potentially seen by a large number of ...

From the link that quid usefully provided in another answer:

I don't understand the wisdom of removing the CW button from the control of an author of a question, and having always to pester the moderators to turn it on. Might it be possible to return this ...

MO 2.0 has a new badge: Sportsmanship: Up voted 100 answers on questions where an answer of yours has a positive score. I'm curious whether this badge really makes sense in our community- I think I ...

On meta, each post must be classified into one of four classes. Which should I use? Note that in addition to these four classes there are numerous other tags on meta that can and should be used in ...

W. Kuperberg asked a question about plane geometry, which invites contributions to solving a research problem which he has worked on. Small quadrilaterals containing a given convex region Given that ...

One new feature that's come along with the transition is the "association bonus", which allows members of Math Stackexchange --- and other sites that are much further removed from the mission of MO ---...

I made a mistake and now I have two mathoverflow accounts. I have an account on stackExchange and another account on Yahoo. How do I combine these two accounts? Is there any way? Thanks

I wanted to inform those who did not follow that there is a Mathematical modeling proposal in Area 51 under its way: http://area51.stackexchange.com/proposals/57490/mathematical-modeling Since it ...

I would like to see the "migrate" option disappear, for multiple reasons. First, it seems presumptuous for those of us who don't participate on, say, math.stackexchange, to express opinions about ...

Today I came across this question, which seems to me would be better asked at stats.stackexchange.com. I tried flagging the question as off-topic/migration, but only meta.mathoverflow.net and math....

If a question is cross-posted here and on the Math Stack Exchange, what's the policy to deal with these? For example take this question and its MSE twin. Should one of them be closed? If so, which ...

Where in the new help center can I find an explanation that the scope of this site is limited to research-level math questions? There is a close reason (part of "off topic") that mentions the help ...

I was searching for an answer I posted, using Google. I knew I mentioned "beltway," "homometric," and "Skiena." But none of the Google searches ...

I asked the same question at SO meta and I was asked to repost here. Preamble: I have a feeling that I am disturbing honeycomb by raising this question. Now that mathoverflow.net is a part of the ...

The Stack Exchange Network frowns on greetings and taglines in posts. There were mixed reactions to this before we moved to the network. Should MathOverflow tolerate greetings or not? Is it ...

One of the seeming obstacles to having scheduled informal seminars on chat is the extra work, probably mostly for the leader of the discussion (should there be one), in presenting ideas on the chat ...

I don't seem to be able to use http://data.stackexchange.com/ on MathOverflow. Will this change?

Here is a question that I recently posted on MO. The last paragraph of the description reads: The reason that I am interested in this question is that we are currently working on an assessment ...

I came across this question recently and asked the OP to explain some notation (see my comment below the question). As the OP was addressing my concerns, there was suddenly a down-vote (along with the ...

I recently stumbled across an old meta discussion in which some people suggested that history of mathematics questions were off-topic for MO. This took me by surprise and I would like to ask for ...

After the recent discussion on LaTeX style accents, I have been reminded of this old discussion at tea regarding the appropriate spelling convention for some German names, such as Kähler. At the time, ...

The purpose of this question is to collect a list of Tips and Tricks for using MO in a more efficient or otherwise better way. If you know some trick or have a tip you want to share with your MO-...

Community Promotion Ads seem to be a useful tool for helping spread various links that might be useful for users of the site. I have mostly encountered them at MSE. I have learned several ...

How is the account in MO closed ? What I mean is if I want to permanently close my login ( and let others know) what do I do

I recently noticed a question posted to MO that was migrated to MSE. Furthermore the comment was also migrated along with the question. The content of the comment was "This is not the right site for ...

With the move to Stack Exchange 2.0, some people feel that there will be (have been?) many more first time users asking questions on MO which should instead be asked on MSE. Presumably, such a user ...

Prior to MathJax and jsmath, MathOverflow used http://latex.mathoverflow.net/png to generate images of mathematical equations to insert in posts (e.g. this one). That didn't last very long but all of ...

I just voted to close this question as off-topic. On the old MathOverflow, I'd have voted to close as "Not a Real Question". But in the current version, the closest I can come to "Not a Real ...

I asked a question at why the extra step in registering? whose solution by Shog9 I think would be worth placing in the Tips and Tricks list. But I don't see the Tips and Tricks anymore in the right ...

As some (many?) of us are aware, there is a recent venture to enable some sort of "meta-discussion" interface for the articles in the form of the Selected Papers Network. For a quick introduction to ...

The Math Stack Exchange chat room has had some heated arguments/suspensions in the past and I was wondering if there were any plans for the newly opened Math Overflow chat room to have its own ...

The subject of this discussion are questions on "open problems" on MO. There is an existing policy on "open problems" reproduced from the (old) FAQs, which involves an open-problem tag. The ...

Would there be an interest in having more specialized chat rooms, like the one for homotopy theory that currently exists? So far, the homotopy theory one seems to be fairly successful, and it seems ...

Please forgive me if I did not post this correctly. I'm writing following https://mathoverflow.net/help/reopen-questions. I would like to ask for my question to be reopened: https://mathoverflow.net/...

The title attribute in the page of a question like Comparison between $E_2$-terms of Leray and “second hypercohomology” spectral sequences is currently set to "ag.algebraic geometry - Comparison ...

I asked a question about where people could store slides for future reference. As a discussion of best-practices in the Mathematical profession, I thought it was appropriate for the soft-question tag ...