For certain applications, I think that requiring proofs of authentic interactions can definitely make bribery attacks less scalable. To use the ride-sharing example you shared, however, a passenger who has been permitted to rate a driver by providing the location proof (which I think is a neat idea) can still prove to others how they rated the driver and therefore they can sell their ratings via trust-minimized escrow smart contracts.
On that note, I’m super interested in subjective trust network and DAOs (…subjective DAOs) so I would love to learn more about what you’re working on. My twitter is @miles2045 if you want to connect.