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23 votes
1 answer

Why are MO accounts not listed among other SE accounts?

When I go look at my accounts in SE network, mathoverflow is not listed there. (You can get to the list of accounts, for example, from your profile page. Other SE accounts are listed on profile page.) ...
Martin Sleziak's user avatar
23 votes
2 answers

Should MathOverflow require registration to ask a question?

Probably anybody visiting this site regularly noticed that quite often there are posts which are not at MO-level and quite frequently also of very low quality. (Many of them are simply copy-paste of ...
Martin Sleziak's user avatar
29 votes
3 answers

Celebrity usernames

The question "naive de Rham cohomology fails for singular varieties" (naive de Rham cohomology fails for singular varieties) recently received an apparently useful answer from a user with the name "...
Sam Hopkins's user avatar
  • 23.1k
11 votes
4 answers

Development of the MathOverflow community

From the Stack Exchange Data Explorer one can obtain the following data: Number of people who joined MO in the last 4 years and have collected at least 10000 points: 96 Number of people who joined ...
Stefan Kohl's user avatar
  • 19.5k
7 votes
2 answers

Loss of reputation because a "user was removed"

I just noticed that I lost 10 points of rep because "user was removed". I don't get it.
Todd Trimble's user avatar
  • 52.6k
5 votes
1 answer

How do I combine my two accounts?

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
Sepideh Bakhoda's user avatar
1 vote
0 answers

How to merge old mathoverflow account?

I know that this question has been asked and answered here: How can I log in into my old mathoverflow account? I have e-mailed the stackoverflow admins twice, but nothing has happened for 48h now. ...
Thomas Kahle's user avatar
  • 1,961
16 votes
2 answers

Recognizing identifiable users changing user names

I noticed recently regular users changing usernames (for instance, changing to a username supporting some particular political issue). The purpose of this post is not to discuss whether this should ...
YCor's user avatar
  • 62.2k
7 votes
1 answer

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
6 votes
0 answers

Why does MathOverflow keep logging me out?

I'm getting tired of logging in to MathOverflow ten times a day. The other Stack Exchange sites I use keep me logged in, and so did MathOverflow until recently. What is different about MathOverflow? ...
bof's user avatar
  • 12.7k
4 votes
2 answers

Keyword Search of the User's own (my own) questions or answers

Is there a (good) way to "search" the keyword of the User's own (my own) previously asked questions or given answers in one's own profile? If so, how? Please illuminate. p.s. I asked that ...
wonderich's user avatar
  • 10.4k
4 votes
0 answers

Is it possible to change the author of a problem on mathoverflow?

By a mistake I have written the problem Is "weakly good" series in a finite-dimensional Banach space "good"? from my account instead of writing it from the account of Lviv Scottish ...
Taras Banakh's user avatar
  • 41.1k
1 vote
1 answer

What happens to reputation when I get merged?

A while ago I sent an email to the stackexchange team on recovering my account They said I should create a new account and merge it with the old one. This ...
David Benjamin Lim's user avatar