The largest piracy community is hosted over at [email protected]
lemmy.world has blocked it. It appears to have also blocked [email protected].
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:
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.