Answering here since the conversation below went in a different direction. In Anthony’s Wishful Thinking Universe, there’s basically no distinction. That is, users running relays on their mobile devices or Raspberry Pi are operators just like the big ones, such as nostr:nprofile1qqsflmrj64um42nh9tu7w8nr3dffy9tjrt8xururype9ajle7alctvgppemhxue69uhkummn9ekx7mp0qyg8wumn8ghj7mn0wd68ytnddakj7qg4waehxw309ahx7um5wghx77r5wghxgetk9uukdx2g, nostr:nprofile1qqs8eseg5zxak2hal8umuaa7laxgxjyll9uhyxp86c522shn9gj8crspz9mhxue69uhkummnw3ezuamfdejj7qgjwaehxw309ahx7um5wgerztnrdakj7qgkwaehxw309a3x2an09ehx7um5wgcjucm0d5hsvlnggv, and others.
Folks running Haven, for instance, are storing and serving notes from people in their WoT when those people tag them. (I’m serving your note above from my Inbox relay; it’s small scale, of course, but people running personal relays are still relay operators.)
In practice, I expect law enforcement to go after the big players (Primal, Damus, nos.lol, nostr.mom) first, due to their scale and the higher likelihood of finding adult content on their relays. But we also need to provide tools for the smaller-scale operators to self-moderate as well.
Regarding government compliance (e.g. facial recognition, ID checks for age verification), I don’t think it’s up to me or other relay software devs to bake compliance directly into the relay software. However, moderation tools should be designed in a way that allows operators to build their own ad hoc compliance solutions.
For example, nostr:nprofile1qqswuyd9ml6qcxd92h6pleptfrcqucvvjy39vg4wx7mv9wm8kakyujgpypmhxue69uhkx6r0wf6hxtndd94k2erfd3nk2u3wvdhk6w35xs6z7qgwwaehxw309ahx7uewd3hkctcpypmhxue69uhkummnw3ezuetfde6kuer6wasku7nfvuh8xurpvdjj7a0nq40 suggested implementing an approval queue. Then it's up to the relay operator to verify the user’s age before releasing a post, however they see fit, especially if they’re operating in the UK.
Of course, I wouldn’t impose this on all Haven users / operators. There should be an auto-approval flag for folks in countries with less strict compliance requirements. Still, the option to enable an approval queue should be there, and it’s definitely jumping the queue on my list of side quests (That said, it’s not something that’ll be ready tomorrow, unfortunately).