They can log in, but thats it. They cannot do anything at all, the software locks down the account after one of us bans someone. So they might show up as online, but thats all.
I don't think they actually log in. If I'm looking at the "Who's Online List" It shows me your username BEFORE you log in, so they may not actually be logged in all the way. Kinda like a gost type thing I guess. The important thing is they can't do anything, so no more spamming for them.