join an instance like sopuli.xyz that has defederated from them
sh.itjust.works Main Community
Home of the sh.itjust.works instance.
Idk but I blocked like a dozen of them or so and they just disappeared. They have a few always-online users that you should just block when they pop up.
Yeah, I have blocked hexbear & numerous weird gay/fetish porn communities. Make sure you're logged in. Click on the post & navigate to the community....then...towards the top before all the posts, there's a bunch of options. One being to 'block'. I have to scroll to find it.
Nav to offensive community
Block their ass
It should be noted I use Sync for Lemmy. You may or may not have this on your render/UI. Should be able to block.
No way yet, but it's supposed to be coming. In the mean time, if you block the major comms you'll probably remove about 90% of the hexbear posts from your feed.
With sync for lemmy you can block instances by adding it to the instances filter.