Nobody is entitled to an income from content creation and nostr is still tiny. With scale will come audience.

You are talking about nostr content creators, not creators in general as those also still lack a lot of discoverability on nostr.

But ... nostr is great for zapping or ... will be. For the zap ecosystem I think the main hurdle is still to get people setup with zapping. I'm a self-custody maximalist and jump between clients all the time, paranoid about sharing my keys with more than the browser extension. I can't zap with any client yet and would feel uncomfortable giving all the clients I'm using access to my zapping budget. I think we need some improvement there.