Board Thread:News and Announcements/@comment-25646419-20161124070113/@comment-26234016-20161213134227

I think that the spy is one of the biggest things that keep mafia from winning every game. The Mafia are more cautious, so the spy seeing mafia chat causes strategy, and this gives the spy something to do during the night.

If you remove the spy's ability to see Mafia chat it becomes the weakest role in the game, as blackmailer can see whispers.

So yeah, that's my opinion.