How I used to mod on a couple of other sites back in the day -
Complainer - "Those people are being mean to me!"
Me - *Looks at the 'offending posts'.*
Me - "There's nothing offensive about those post and there's no TOS violations. . .and I will ban you if you bother me again without good reason. Also replying to this will result in a ban. Act like a spoiled brat and I'll treat you as one. "
Complainer - "You can't do that!"
Me -"Enjoy your vacation!"*Bans complainer!*