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:
Well, lemmy.world has shown their hand. They don't seem to have any consistent defederaion or content policy other than "whatever they feel like."
Abandoning my lw account and switching to lemm.ee now.
About lemm.ee . . . it's a great instance, no doubt, but maybe not the safe haven you think it is. The rules there leave the option of blocking "illegal content" and users/instances that post it wide open.
Excerpted from the Administration and federation policy on lemm.ee (the bold is their own):
I don't like to piss in other peoples' Wheaties, just trying to save you and others some trouble. If you're looking to change to a piracy-friendly instance that will remain so regardless of how "illegal content" is defined at any particular moment, lemm.ee might not be it.