balas on Nostr: You ask their relays for their content, not your relays. Relays don't have to keep ...

You ask their relays for their content, not your relays. Relays don't have to keep everything from everyone and can't have what they don't know about. If your followers don't post to your relays, then your relays won't have it. That's why nostr uses the outbox model, so you know where to find your followers posts.