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:
lemmy.world as the largest instance on Lemmy is starting to look out for "problematic" behaviours, I guess
It's free as in beer, not free as in freedom, apparently. ¯\_(ツ)_/¯