I appreciate the visualization. 

(FYI - At first I got the same "view on desktop" note as nostr:npub1jk9h2jsa8hjmtm9qlcca942473gnyhuynz5rmgve0dlu6hpeazxqc3lqz7 (on a laptop). Zooming out fixed this.)

Thanks for this. I've found Nostrudle works nicely for discovering user inbox/outbox relays. Haven't been able to see other user's relay info on the mobile clients (Damus, Primal), which is where sharing them to your followers would come into play. I guess growing one's reach is better done using traditional/centralized channels for communication for now. However, I can see how the outbox model can give you more control over the content you are seeing, if you only connect to paid relays, for instance, you will the proof of work takes care of spam users.