Damus iOS does not do outbox, so it only reads from an unchanging set of relays, and you have to get lucky to see your friends posts. Outbox model reads from a dynamic set of relays where your friends post, so it can see all their notes by connecting to 2 or more relays from *their advertised relay lists. The feeds.relay.tools pulls in notes using outbox so that a client that does not do outbox can just connect to that relay and see them. Nostur does it's own outbox in addition. So, now instead of no outbox, there are multiple ways to read your outbox.