While this isn't really the host's fault, it still is a pretty stupid ban.
I was on Gravitycat's snow TDM. I had a few grenades and a big f---ing gun. Had 3 teammates in front of me and a few enemies ahead, i opened fire. My teammates got out of the way so i killed 1 enemy. I just held the trigger down and aimed the gun at the enemy's general direction. Suddenly, all my allies ran into my fire and got themselves killed. They started flaming me "You nuub teamkiller" and "Ban him!". I tried to explain but i got quickly permabanned by an admin (gcat wasnt on) for reason (no teamkilling). I tried to pm him and chat in IRC, but he doesn't answer me...