This ignores that advertisement is a good amount of revenue for Reddit (it took is over $8M last year from advertising)[1]. In any case, there definitely needs to exist a balance, and the announcement on Reddit makes no pretense that they'll allow any community like FPH to come back or exist going forward. Even if they didn't need to rely on advertisement, it's better for the community overall to have communities that are hurtful go somewhere else. In my opinion, if FPH etc. are fine at Voat, stay there.

1: http://techcrunch.com/2015/02/18/reddit-charity/