Ahhh interesting, so when I delete a note on snort.social, even if Damus does not provide note deletion, it honours the fact I requested deletion on snort and won’t display the note to me? I thought it was NIP-09 and that it was handled on relays. But I guess after re-reading the NIP it seems to be a combination of both?

Yes, I think there is tremendous potential in mining data in media on nostr and nostr.build. Not just images but also audio and video. Would love to help: nostr would really benefit from better search capabilities so that people can gather around subjects of interest (other than nostr itself and bitcoin), and I think this would help.