Per the open thread, it seems that it hasn't been obvious that: yes, you can just create one of these threads if you want to. I decided to make it obvious.

Meta: until now we've been tagging these both 'grouprationalitydiary' and 'group_rationality_diary'. That seemed silly to me, and it was an obstacle to creating the diaries, so I stopped. I wasn't sure which was relevant for the sidebar, so I tested and it turns out it's the underscore version. I also link to the tag instead of the wiki page for the archive, because it doesn't need maintenance. I'd recommend deprecating the archive on the wiki page and just linking to the tag, but I don't yet have a wiki account and my attempt to create one apparently failed.