Yes, OK... The media itself is hosted on some content server. Same thing as Nostr. And like Nostr, you can move it to another server (we've developed a system called Blossom to be a censorship-resistant means of doing this, but that's neither here nor there).

I'm talking about the "reporting" aspect. What you're describing, as I understand it, is a situation where some user on _another_ Activity-Pub federated PeerTube instance is attempting to ban your media for _that_ entire instance.

This is what can't happen on Nostr. Because there are no "servers" per se. A single relay might ban you, or a single user, or some collection of such. But it's not centralized enough so that (say) of Mastodon.social bans you, you lose access to 100k people (or however many are there).