Well the reason why i have banned you its obvious.
That guy is a banevader and i have banned him many times from many servers so automatically when i see that nick i ban witjout checking all this you mention if he is steam or score or anything else cause tbh its not something that we (admins) should do and i mean to check and try to find out that its not him.
Since you know he is a banevader you should not use that nick cause you put yourself into all this trouble to be banned and waiting to be unbanned and you bothering us with things that not needed when you already know that its not allowed to use that nick and you have been told that by many admins from what i've been informed.
Player unbanned and dont use that nick again.