Hah... if you think you've messed up big time, you haven't. You haven't messed up bad enough to have people register usernames that try to insult you. (And yes, I've had my share of banning usernames like "****Moofey" on other forums.
)
Other times, it's just people hating on you because they envy the fact that you're a defender of justice for the forum. lol (But since you have a Dokuro avatar, I can safely say that if anyone causes trouble they'd end being "Excalibolg'd" up their rears. XD)