@pathunstromPiper Thunstrom A couple of years ago, I was brought in as a moderator to help de-fascist a community that had practically turned into 4chan, in one of the most fundamentally-abuse-attracting and difficult-to-moderate categories of community (privacy/security-related).

The policy was set as "no fascists, no alt-right, nothing that looks like it" and people would either get banned immediately (if clearly intentionally abusive) or get a warning otherwise that they were expected to take seriously (doubling down would be grounds for a ban). Every ban was permanent but revocable if someone showed genuine reflection and commitment to do better - this sometimes took minutes, sometimes months or even longer, sometimes never.

Randos complained for months. "You just call everyone a nazi", "how do you define fascist then", "you're being unreasonable", "the alt right aren't fascists", and so on, and so forth. Without exception, the ones complaining about it the most were the ones who already had a track prior record of being an asshole in different ways. A lot of the bans were the result of brigading attempts from, well, fascists who objected to being pushed out, pretending to be 'new users' and mysteriously immediately knowing about previous bans that happened before they joined.

It took a while, but they eventually gave up. The result was a pleasant community to be in, unusually pleasant for a privacy/security community. I haven't been around there for quite a while now, but my understanding is that it's still a nice place to this day.

"No fascists allowed" works, even under the worst conditions, and the "no, seriously, this is not up for debate, the moderator decides" is a critical component of making it work.