To add here. I don't think that the relay providers are aware of such problems as they can run into really big troubles and I don't think that they have formed some kind of a smart company
Discussion
We have decided that whoever hosts and administers our relays should _always_ immediately delete anything they are asked by to delete, without complaint or resistance. Nostr is a nonviolent protocol and everyone can own and host their own data, so nobody else has to protect their events or images.
We also retain the right to remove anything we find offending or illegal from our relays and other servers, and to block whomever we choose.