The largest piracy community is hosted over at !piracy@lemmy.dbzer0.com
lemmy.world has blocked it. It appears to have also blocked !piracy@lemmy.ml.
If this is a problem for you, I'd suggest migrating accounts using LASIM to an instance that doesn't block it (such as lemm.ee).
edit:
An official announcement has been made:
So far kbin has letting us decide for ourselves what to block..
I'm not haven't seen anything yet saying kbin has defederated from anything.
Kbin does defederate, but doesn't publish the defederations. EH and grad are blocked, at least. They are planning to add a page for it though.