379 views

### Migrated question returned to MO - how to handle?

The question I am referring to is Is all complicated modern math intuitively understandable? (See the user's math.SE account to see that the question was at one point migrated to math.SE.) I think the ...
290 views

### Once a thread is deleted, is it really too late to bring it back?

I was under the impression that "deleted" threads were still visible by moderators or other high-level members of the community. Is this correct? If a post was deleted that shouldn't have ...
186 views

### I want to answer a closed question

Please reopen this question: A problem of an infinite number of balls and an urn I have a nice answer. (Added (DR): now re-opened. Please note there are ten deleted nonsense answers, which I imagine ...
295 views

### Nominate bountied question for closure

Bountied questions cannot be closed: this prompted this meta-MO question. In the answer to that question, the reasons for this feature are explained (closure would shorten the bounty period, possibly ...
91 views

### Tracing and Seeing deleted questions

Is there a way to search through deleted questions? Can a user reach his or her own old deleted questions? In the early days of MO I asked about similar sites in related disciplines and there were a ...
2k views

### Deleted answered question / arXiv posts based on unacknowledged MO posts

I'd like to mention here two possibly related facts: (a) Soon after this question was answered, there was an arXiv paper posted providing the same answer (b) Soon after this closely related ...
1k views

### close/reopen wars on Mathoverflow

Sometimes one sees a situation like with this question: Cargo Cult Science in mathematics? which goes on hold and back again a number of times. Should there be a limit to the number of such rounds? ...
350 views

### Reopening questions after clarifications

I noticed that closing unclear questions often happens in next to no time while reopening them after the OP honestly follows the request to explain what he meant and does a reasonably decent job on ...
555 views

### Undelete request, Question 290941

Could I request that Question 290941 be undeleted? It is a sensible question, and I spent some time finding a reference for the answer. It was then deleted by the poster - I have no idea why.
10k views

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

What happened to the dear user "quid" (9072), they appear deleted? Noticed this by edits I remember were from them. Google still remembers them and the user page of user number 9072 returns 404 (...
2k views

### User retention rates on MathOverflow

A two-input table : First input : number of users with more than $500, 1000, 2500, 5000$ or $10000$ reputation points. Second input : number of users not seen for more than $1/12, 1/4, 1/2, 1, 2$ or \$...
221 views

Often there are questions of the type: "I have posted this question on math.SE. No satisfactory answer so far. Would this question be suitable for MathOverflow?" People ask this in various places: ...
604 views

### Some proposals for modifications of the process of closing/reopening questions

I wish to make a modest proposal on closing/reopening questions. Let me begin by noting that by far the most frequent reviews are Close votes -- almost 37,000, and looking quickly most of the close ...
1k views

### Should we try to re-start manual deletions or is the situation fine anyway?

On MO 1.0 we had, after some discussions and conflicts but still, what I think was a quite smoothly and efficiently working process of deleting "bad" content. It seems with the move to MO 2.0 this ...