To be fair, I think @dad was implying that reputation is the value, not the ID itself. Reputation is how trust is built on something like AirBnB. Reputation is very similar to a "proof-of-work" model. Don't trust, verify... that the person has a reputation of not trashing places.

That said, I don't understand why a reputation system wouldn't work with a Nostr pub key to build your reputation. We can build reputation without it being tied to government ID. Have you considered this @dad?