Banned this morning I believe. You rdm'd someone then left (this was before SB was officially working again), and I saw that you had joined and re-banned you.
Towersheep was on at the time, you were spamming to me "woman get back to the kitchen" in chat and when you rdm'd, you changed your name to mine and didn't return. Technically, that's rdm and leave, even if you were kicked for changing your name during a round.
Also, to be sure that it was him when he left (since when a player leaves it doesn't say what name that had previously, only what name they changed to), I checked the Steam ID with steamidfinder to be sure and addban'd him. (But as I said before, this was before sourcebans was officially working again.)