Great points, I think this is where separate identity/nym could also come in play.

If I could define another npub to which I delegate reports - that would somewhat work even with Amethyst current approach. nostr:nprofile1qqsdv8emcke7k3qqaldwv956tstu40ejg663gdsaayuuujs6pknw7jspp4mhxue69uhkummn9ekx7mqpr3mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmqpzfmhxue69uhhqatjwpkx2urpvuhx2uc86mqq0 and Primal did this in UI where you could follow someone else's mute list... if I could have that, but also to say - when I report, report though this npub - I would be OK. And then multiple people could use that same npub (nsec sharing is another issue though)