Archer Ships on Nostr: Great list! Here's some more. No doubt some overlap with some that you've mentioned, ...

Great list! Here's some more. No doubt some overlap with some that you've mentioned, but deserve individual attention.

1. Tradable bounties, like the social policy bond system (https://socialgoals.com/).
2. Lotteries. Every zap goes into a pool that pays out users daily / monthly. Developer gets a percentage.
3. Service Level Agreements / Retainers. Pay a fee, get prioritized customer support.
4. Build a Monero miner into the client. Share all mining proceeds with p2pool. Developer gets a percentage.
5. Fines / virtual swear jar.
6. Escrow services.
7. Dispute resolution (e.g. Kleros)
8. Loss leader for consulting services.
9. Retroactive public goods funding. (https://tea.xyz, https://vitalik.ca/general/2021/11/16/retro1.html)
10. Venture capital (help users to start businesses of their own, take a percentage)
11. Token sales + dev tax / founders reward (https://z.cash)
12. Bridging services - send / receive nostr posts to legacy services (Twitter / Facebook, Instagram) for a fee
13. Identity vetting / management (BrightID, STAMP Protocol)
14. Rugpulls. :)
15. Contract enforcement. Require performance bonds from members which are forfeit if they don't fulfill contracts with other members.
16. BAT token (Brave browser rewards)
17. Incentivized forking (https://scribe.rip/@arweave/arweave-is-an-evolutionary-protocol-e072f5e69eaa)