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:
First off, you should be using a password manager. This is probably a good opportunity to get into the habit.
Any small instance will probably never be defederated by anybody else unless they're focused on something controversial.