I like the intention of better UX but scalability-wise it's similar to the idea that we should all move to the woods. Just doesn't support a billion people on Nostr. For that we need to decouple transport from the social graph and better solve the common neighbor problem that relays currently pose. I'm all for following fewer people at the same time. Circles or tribes or aspects as they're called in other systems help replicate the closeness of the offline good old days. More people will feel they belong if they converse both up and down the social ladder.