L402 (previously called LSAT) seems like a great way to gate API calls with Lightning payments
https://docs.lightning.engineering/the-lightning-network/l402
This could be used to pay for nostr relays, including for specific services. Maybe this could be used to fix Tor incentives (ie pay for exit nodes or routing).
Is anyone using this (besides Lightning Labs, ie Pool)? Any downsides of this approach?