You can still receive reports, which will auto block you for the contacts of the user that reported you. In the case of content removal, I think the relay operators can remove content (only from their own relay) and a joint operation between relays could be taken to delete content which is objectively harmful.
Discussion
Is there a protocol about the removal of the harmful content? I also doubt at what extent this protocol can be implemented as there are no regulatory or compliance obligations, or is it even necassary