15



15

Overall there are very few migrations. Over the last 90 days there were only 8 migrations to Cross Validated (the statistics site) and also 8 to Physics (one of them rejected). Moreover there were 2 to our own meta site. As regards incoming migrations there were about 30 from each of MathOverflow and Physics, and about 10 from each of Cross Validated and ...


12

As far as I know, we cannot get some data on dates of account deletions from the Stack Exchange Data Explorer (SEDE). Still, for deleted users we can find the date when they posted their last post. (Assuming they made at least one post. The same is true for comments. And also for some other actions - but I took posts and comments, since they are the most ...


8

Unfortunately, I think the stack exchange sites are being designed in the way that, this is the direction it will go (not necessarily a bad thing though). It is designed to be a Q&A site where eventually most commonly asked question can be easily searched. After years of effort of all the contributions from people, it's getting closed to the goal and ...


7

Regarding your questions: There is no dedicated feature to see how many users are online (but see Martin's comment for some ideas); it is also not exactly clear to me what it would mean. Generally, the site is more designed as an asynchronous medium, not for real-time or near real-time interaction. The follow feature is very new. As far as I know such a ...


6

Using Data Explorer (SEDE) you can check how has the number of questions in some given tag evolved over time. Here are two queries, one showing absolute number of questions in the elementary-set-theory, the other one showing percentage of all question which have this tag. The latter is taken from here: A statistical question about statistical questions. ...


5

My understanding is that most of the time, someone who asks a question on an elementary topic will not be able to name precisely what the relevant tags are. In such cases, it's all up to more senior users to tidy things up. But then not all questions get re-tagged properly because there are too many of them, because not everyone thinks of taking care of ...


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