The Syndicate

Anonymous BTS would only mean that you sign into a Chatzy under a pseudonym. So long as you do not have chat in more than one game at a time, it is not that hard. In a game at RM, LOST: Revolution, the baddies, in addition to home chat, had a variety of chatrooms embedded in the game for various uses, some requiring role names (plus it was a sock puppet game with about 50 players), or even made up names. It was hard and complex, and there were mess ups, but overall, it added to the intensity of the game rather than detracting.

I would play a game like that again in a heartbeat (although it did require 4 hosts, lol, due to the various hidden threads~ different groups of players had different threads the others could not see, until the combined about midway through).