Nostr is a really lovely development in social networking. It's certainly not ready for people who don't have dedicated followings, but it's almost already a good additional place to publish. It's simple! I'm jealous; I was trying to come up with something like this.
Otherwise, I just want to mention a couple of points regarding "incentives" to run a nostr server (which they call a "relay", and for which the mandatory functionality is quite simple). It's kind of funny that in the README Fiatjaf doesn't really answer the question about why you might want to run a server. Here's a few possibilities, besides just thinking it's cool:
- the obvious incentive: you want to give particular people a platform.
- even with just the mandatory functionality, users can query for all the posts related to a post. Servers can promote some of those posts over others.
- only servers can see the level of interest for different authors, topics, etc, by logging the requests that they get.