Talk:Friends/@comment-50.124.235.237-20190522215449/@comment-35890342-20190617045716

To answer your question, yes the game should be played unbiased in every way. Friends aren't supposed to use outer knowledge to their advantage (metagaming) and should play as if they've never met any one of the players in the game. It's a thing that falls under the category of "Gamethrowing", if that's what they aren't doing. It's more of less a logical thing to play the game as how it's supposed to be, and perhaps that's why there's no specific rule for it.

You can of course, try to report them for supposed "Gamethrowing".