Isn’t instance-blocking alone sufficient for being able to prevent the environment from being overrun? I understand the hesitancy to platform reactionaries, but as it stands the network effect is easily the biggest hurdle the Fediverse is going to face. Right-libertarians and actual reactionaries might be a net negative on the main instance, but as far as the software itself goes, numbers are numbers, and could end up making a world of difference.

Let them form their own circlejerks away from everyone else and have slur-blocking be on a per-instance basis, after all that’s why the federated design works so well.