I wasn't constantly watching, and I didn't witness any griefing or multikilling or whatever. I saw him chatting mostly with allies, sometimes with some enemies, always about how sneaky and ninja-like he was. Others may have a different opinion based on what they saw or what they had the ability to see.

From my limited vantage, Frizwoo gave me some lols. I always like that. Sorry if your experience differed.