I seem to be simultaneously freakishly good and bad at this game - I have, on multiple occasions and for multiple mappings of "green" and "blue," been accused of being a green pretending to be a blue (I am in fact blue,) and somehow I regularly find myself discussing the finer shades of green with greens who assume I am green. (It is hard for me to think of things that are funner than this.)

On Will Newsome's IRC channel someone mentioned the idea that you could totally automate the ITT into a mass-league game with elo ratings and everything (assuming there was some way to verify true beliefs at the beginning.) Make it happen, somebody.