Yes and I would probe them to see if they accept kind 20000s. If they do, they can be on the list. Ideally it would be hundreds of relays, and each channel would live on say 5 relays. Persistence isn't important right now.

I've written a few but they are all terrible. I do think maybe self-attested nip 66 would be better here. That way you're not hijacking random personal relays, instead relying on volunteers who want to serve a particular geography. You would only need the usual 2-5 per region, and a few geo "hubs" could do a lot of the lifting.

I used IRC some years back. Found it interesting to talk to people all over the world.