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43 votes
Accepted

How to cite comment by unknown user disproving Erdős conjecture?

This would not be a first, see arXiv:1909.00177 The citation (which I think follows the best practice) is [6] Fedja, Communication on the MathOverflow website (2018), available online at ...
Carlo Beenakker's user avatar
42 votes

What happened to the dear user "quid" (9072), they appear deleted?

The user formerly known as quid asked for his account to be deleted from MathOverflow. That was quid's own decision.
Asaf Karagila's user avatar
  • 37.9k
39 votes

Celebrity usernames

This answer approaches the subject from more of a network level than a MathOverflow-specific stance. The Stack Exchange Terms of Service deal with this issue as follows: Under no circumstances ...
user642796's user avatar
29 votes

How to cite comment by unknown user disproving Erdős conjecture?

The citation (which I think follows the best practice) Indeed, that was a good way to handle it :-) The priority here is, as I said many times, to give the due credit to MO and similar sites that ...
fedja's user avatar
  • 60.3k
23 votes

MathOverflow user jailed

As I mentioned in one of my comments, I wrote a Turkish academic in the United States who is close to this issue, and she kindly responded thus: Dear Todd (if I may), I just received the ...
Todd Trimble's user avatar
  • 52.5k
22 votes

Celebrity usernames

I brought this up with the moderation team in email; I haven't heard back explicitly from everyone, but have an idea where most of us stand. For now no official action will be taken. Putting aside the ...
Todd Trimble's user avatar
  • 52.5k
19 votes

What happened to the dear user "quid" (9072), they appear deleted?

quid has outlined his reasons for leaving in this answer (See Footnote 1), in relation to his nomination for a mod position on math.SE.
Alon Amit's user avatar
  • 6,434
19 votes
Accepted

Celebrity usernames

After some further discussion amongst the moderators, I think we have decided that this username and account photo are inappropriate; they seem to only serve to provoke controversy. I've changed both ...
Kim Morrison's user avatar
  • 7,600
18 votes

Flagging spam user

There are now lots of similarly named accounts (having to do with car insurance) showing up in Recent Badges. I think they are effectively spamming in the Recent Badges space. Going back further, ...
Nate Eldredge's user avatar
17 votes

What happened to the dear user "quid" (9072), they appear deleted?

A recent discussion in comments under Alon Amit's answer prompts me to offer some reflections on quid's publicly stated feelings and judgments about MO and the differences between MO and Math.SE. I ...
Todd Trimble's user avatar
  • 52.5k
16 votes

What happened to the dear user "quid" (9072), they appear deleted?

Taking Asaf's post as truth that the user requested deletion of their own account (and having no information to the contrary), I encourage people in this community to at best send their well-wishes ...
Gerhard Paseman's user avatar
16 votes

the number of on line users at a given moment

Here is a snapshot of the site analytics to which Martin refers: So, roughly $40,000$ page views per day (in the summer). Might be interesting to know what happened on May 14th and on August 8th...
Joseph O'Rourke's user avatar
15 votes
Accepted

Flagging spam user

I'm happy to hear what the community thinks, but my instinctual reaction would be to destroy it. The account has no business here and the page is meanwhile free billboard space: not something I think ...
Todd Trimble's user avatar
  • 52.5k
12 votes

Why are usernames not unique?

MathOverflow has been part of the Stack Exchange network for a very long time, and the Stack Exchange network doesn't enforce this. (I'm not sure how it was back in the days.) Just as in real life, ...
Glorfindel's user avatar
  • 2,741
11 votes
Accepted

the number of on line users at a given moment

As far as I know, there is no such thing. See also this post on Mathematics Meta. Number of people online. On main meta you can find some feature requests such as View approximate number of users ...
Martin Sleziak's user avatar
10 votes

Users using AI to write lots of answers

As per a comment by @Todd Trimble [now deleted, on request from a user -- TT], any posts suspected to be AI-generated should be flagged.
10 votes
Accepted

Influx of ridiculous number of spam users – what to do?

Unless the accounts start posting there's nothing to worry about. It's spam, yes, but low impact spam whose purpose (search engine optimization) is blocked wholesale by the SE software. The general ...
Asaf Karagila's user avatar
  • 37.9k
9 votes

MathOverflow user jailed

I happened to see this post, and I'd like to add some words from the other side of the barbed wire. It's a puzzle for me why posts like this are controversial here. I have never been in Turkey, and ...
Sergei Akbarov's user avatar
9 votes
Accepted

Who wrote the year of death in the profile page of the late William Thurston?

Please see this discussion, from the old forum 'tea' before it was superceded by MO meta: http://mathoverflow.tqft.net/discussion/1429/loss-of-a-member/ The discussion indicates that it was Anton ...
Todd Trimble's user avatar
  • 52.5k
7 votes

Why are usernames not unique?

It should be noted that one is allowed to change the display name at will. (This has caused some problems; I have seen the downside of being impersonated in this way.) Indeed, many of the display ...
Gerhard Paseman's user avatar
6 votes
Accepted

Getting list of users ordered by date joined

The first possibility that comes to mind is using SEDE. (Perhaps somebody knows how to find such a list directly on the site - but I am not really sure whether there is such a possibility. Answers to ...
Martin Sleziak's user avatar
6 votes

What happened to the dear user "quid" (9072), they appear deleted?

There is some concern that quid's contributions have disappeared. I can verify that they are still here. For example, this question was answered by quid, and the comments are still preserved. It ...
arsmath's user avatar
  • 6,740
5 votes
Accepted

Is it possible to list all mathoverflow users from a given country?

You have tagged your post both (feature-request) and (support) The feature-request part can be probably answered mainly by SE staff, which could say whether there are plans to implement something like ...
Martin Sleziak's user avatar
4 votes
Accepted

In the MathOverflow data, can you determine the number of hours you've spent on MathOverflow?

I've tried to make this as complicated as possible by looking in the information_schema.columns to find all tables that have either a userid or owneruserid column and a date or creationdate column. ...
rene's user avatar
  • 101
4 votes
Accepted

How to report intrisically spammy user accounts?

I've tried destroying a few accounts with spammy profiles, and it takes less than 30 seconds to do each one. However, looking through the list of "autobiographer" badge recipients, I would ...
S. Carnahan's user avatar
  • 45.2k
3 votes
Accepted

Why is a user with many upvoted posts shown with reputation 1?

Yes, that means the user has been suspended*. All you need to know about the situation is in the FAQ on Meta Stack Exchange: When an account is suspended The account will receive a private ...
3 votes
Accepted

Links to the reputation leagues are broken on MathOverflow

As of last week, we also check for .net as a possible way to complete a valid domain, so ...
Adam Lear's user avatar
  • 101
3 votes

In the MathOverflow data, can you determine the number of hours you've spent on MathOverflow?

Here are some similar questions on other sites: How many hours I spend on SO (Meta StackOverflow) To estimate how much time I've spent on SE, what tools are available to help, or at least how can I &...
Martin Sleziak's user avatar
2 votes

Flagging spam user

There is no clearly defined networkwide policy on this topic, because the rules on self-promotion only apply to posts, not user profiles. Your ‘About me’ is your own space, and as long as it’s not ...
Glorfindel's user avatar
  • 2,741
2 votes

Users using AI to write lots of answers

The following answer is by ChatGPT, as requested in a comment: Addressing the issue of suspected AI-generated answers on a Q&A site for professional mathematicians requires a nuanced approach. ...

Only top scored, non community-wiki answers of a minimum length are eligible