Sorry Noex, I forgot you're an unban pannelist as well. Do you wanna take this case?
You can clearly see that the ban on him is that of a Steam ID changer - Steam ID 0:0:19993....
I believe it might be the Steam ID changer using a lot of different names of players, but I can't be sure until I check.
I will leave this to someone else for now, whoever wants to claim it.
P.S - I saw this guy Gh0st is Back in the server myself, but after I compared steam IDs I decided not to ban him, just because they were really different, also IPs.