Co-signing posts should most definitely be warned. Not only are they shady, they also are the biggest reason threads get derailed or go off-topic. But that's just my two cents.
I've always avoided the 522 by accepting friend requests from the users' profiles, but now a user with no friends on ATRL added me and there's no way to add him from his profile. Do I get 522 if I reject the good sis?
Yay for more mods, thank you ATRL mods and admins! 
