> I don't care what the mechanics of the censuring process are. But I know I don't want to trust my correspondence to a company which sets itself up as an arbit

> I don't care what the mechanics of the censuring process are. But I know I don't want to trust my correspondence to a company which sets itself up as an arbitrator of social acceptability and morality. Then your only choice is self hosting because the provider can, and will, enforce any rules that they deem necessary even if they don't put it in the ToS explicitly (usually hidden behind "ToS can change at any time" clause). I've given the Cloudflare/Nazi case as an example.