I always thought the beauty of Nostr is that it attracts people who genuinely care about what their building. And the openness of the protocol basically leads to a state, where quality is the only moat you can have. If you half-ass a good idea, people will just take their key pairs to the next best implementation. And so over time, the high quality apps will have the most users.
(Insert the noone-will-remember-your-name-meme)
But I think some kind of meta-app with a dedicated event kind for bounties would be a cool idea. Maybe even something where you could put zaps behind the feature requests or something like that.