Thread:Feedback/Blocked users/reply

Also:
 * as I've found out, recentchanges gets borked when renames are done and user talk pages are moved.
 * if I create a thread (like I did) with a title that breaks the titleblacklist, no one who's not an admin can reply to it as it involves creating a new page.
 * I'm still not entirely sure what changing the subject does to the location of all the threads involved.