The ban was removed. I wasn't able to find anything conclusive in either the client-side demo or the SourceTV demo.
Steam Wrote: 4:02 PM - George, of the jungle: was out
4:02 PM - George, of the jungle: bison, dude
4:02 PM - Brawl Bashin’ Bison: ???
4:02 PM - George, of the jungle: you're very rude towards alina
4:02 PM - George, of the jungle: how about unbanning her friend?
4:02 PM - George, of the jungle: I mean
4:02 PM - George, of the jungle: it's only gamebanana skins
4:02 PM - Brawl Bashin’ Bison: LOL
4:02 PM - George, of the jungle: ^^
4:02 PM - Brawl Bashin’ Bison: LOLOL
4:02 PM - George, of the jungle: lol