Two ways I've seen it come up: 1. Someone posts something on twitter that someone else finds offensive 2. Someone proposes a CoC rule banning bigots from the

Two ways I've seen it come up: 1. Someone posts something on twitter that someone else finds offensive 2. Someone proposes a CoC rule banning bigots from the community, which raises the question of "who defines who is a bigot" TFA mentions a third way; a remark at a conference is overheard.