Firstly, it comes to mind that someone could easily orchestrate a series of incidents like this to impair Airbnb's potential, especially in a particular location. If they deny a payout, anyone who doesn't own their place will think again.

Secondly, admittedly Booking.com and so on don't "verify" a customer beyond email and credit card, but it's hard to imagine a hotel piping up like this for being referred a dodgy customer.