I booked a place and it turned out to be unlivable due to noise, I left the next morning, requested refund for remaining week+, raised a ticket, spent time on the phone eventually Airbnb refunded their fees but maybe because I booked it in advance somehow it was up to the guy to refund and he declined. At a few hundred USD it was the most expensive night in my life (I can't splurge). Never saw the guy in person either, of course.
If you have a cute listing description in a major city and a couple of friends who wrote you positive reviews you can get a steady airbnb income mostly without people properly staying in your place with tricks like this
(In this case some reviews specifically claimed superb soundproofing but it turned out to be an apartment subdivided into rooms with cardboard-like walls)
I stopped using Airbnb after a couple of such incidents. I actually don't miss it at all so far. It's mostly been a source of bad travel experience, and 99% of places that are good also publish listings elsewhere