(This was a new question I asked, but François pointed out this should go here - no edits to the below)
Shouldn't we have migration to stats.SE at the very least? I've seen mentioned that physics.SE is an option, but this seems less urgent, and I've already seen a couple of questions that could/should have been there. For example http://mathoverflow.net/questions/135079/frechet-mean-of-multiple-curves - which is being voted to close with a custom reason that it should go to stats.SE.