You are not permanently banned.
You teamkilled a guy who was standing on a ladder right in front of me. At the moment you killed him he was no longer standing on it. You even walked over the ladder again to attack him. I know that it is annoying when somebody is walking over a ladder but that is still no reason to break the rules. Especially when an admin is online. Next time just report him.
You will be unbanned at 20.02.2013 12:46:41 CET. Perhaps I will lift it a little bit earlier.