I think tit's on anything is a good idea, to be quite honest. Also, @MOP:
I have banned at the very least 250 people since becoming a moderator, I just leave the cleanup (pooperscooping) to the top mods
When they do get by (normally when i'm sleeping), the other mod's get them in the morning. It's working pretty well, just hoping to get some post deleting powers so I can help clean up as well. I do have to admit, these bot's are ridiculous