This is not new though. Abandon-ware is all over the place paid or not, nostr or not. I can't see building a long term project off a short term prize. Must be intrinsically motivated, like you and me.
Discussion
This is partially why I think grants can work. Not totally, but if I'm already motivated to work on a project and it aligns with community or VC I can pay the bills doing what I want to do. Within reason. Money will always have influence, users will always have influence and so on.