Excellent idea (I would even add GPS confirmation), but no way Airbnb would do it. From their perspective, you are creating a new channel to lodge a complaint

Excellent idea (I would even add GPS confirmation), but no way Airbnb would do it. From their perspective, you are creating a new channel to lodge a complaint for every single transaction. Often, those complaints would be resolved privately between the renter and owner (or wouldn't be raised at all).