I think I know of whom you speak. We can refer to him as “He who shall not be named” 
Same guy from December with different name, he/she will change it again when banned then repeat.
Maybe best option is to not ban that account better the devil you know and all that!!!
So its been a while but I got a serious griefer problem. I am in the double digits of games ruined by this player and no matter what the name doesnt appear so I cant kick them. How is their name not showing up at all? Someone said it was because they blocked the host but I took this method out for a test run with friends and complete strangers and still my name showed up. Blocking doesnt work although I think if I have a player blocked they should not be allowed to join my lobbies. Mostly just want to know want to know how they remain invisible. Anyone actually know how to do this?
Ask Hitler.