First, I hope that the request is appropriate and asked at the right place. If you have any issue with it, remarks are warmly welcomed.

When flagging a question for "Off-topic > This question belongs to another SE site", the possible choices include Meta.MO, Maths.SE and Cross Validated. Would it be possible to add Academia.SE in this list, please ? In the same vein, adding MathsEducators.SE sounds right, as both of these websites are closely tied to MO (though I must admit I'm not quite aware of the current state of ME.SE, so this last proposition may be a bit premature).

• MESE is still in beta, so we cannot establish a migration channel yet. It is a possible migration target, but I think it would be best discussed after MESE is out of beta. Also, moderators can migrate to any other SE site, so if the flux of questions that belong to academia.SE is small, the migration channel does not seem necessary. There is also a limit on the number of migration targets, but we can of course revert changes that we are not happy with. Apr 10, 2015 at 11:00
• Okay, I didn't know about the migration limit ; assuming it is $3$ as Emil said (before withdrawing his comment, sadly), then the question pretty much loses its interest. Unless one is willing to sacrifice the path to Meta, for instance, but that would probably deserve its own debate, assuming it is worth anything. Apr 10, 2015 at 11:03
• Actually, the discussion at meta.mathoverflow.net/questions/141 indicates that the limit is 4, not including meta.MO. So, there is still room for two more migration targets. Apr 10, 2015 at 11:15
• The same discussion also show a lot of support for inclusion of academia.SE, except that the site was still in beta at the time. Apr 10, 2015 at 11:21
• Wow. It's been two years since we migrated here. :|
– Asaf Karagila Mod
Apr 10, 2015 at 11:52
• Could you give a list of (recent) examples that could be migrated? If there are not a lot of instances it seems not necessary to have an open pqth. Instead just flag for moderator with the request.
– user9072
Apr 10, 2015 at 14:31
• In the past three months, there have been 3 migrations to Academia.SE. One was rejected because the question had already been crossposted. Apr 10, 2015 at 16:39
• In case somebody is not aware and interested in more details, 10k+ users have access to such data too mathoverflow.net/tools/posts/migrated/away
– user9072
Apr 10, 2015 at 19:50
• @quid : Actually, the question was prompted precisely by a question asked on MO which was about reviewing and publishing - but the author quickly withdrawed it and I don't have 10k rep, so I can't give a link. But if you look at recently (~24 hrs) erased questions, perhaps you will find it. Tags were, if I'm not mistaken, "review" and "publishing". Apr 11, 2015 at 13:08
• @Hachino I see. I would have a hard time finding it though, as self-deletions are not in this list.
– user9072
Apr 11, 2015 at 13:09