After a recent experience, I’d also like an answer to the question what happens in case the guest is not recommendable.
I had a shared room booking and the guest expressed in colorfoul details by sms, that he would like to share my bed (instead of the kitchen), with fantasies of breaking down my bedroom door.
The airbnb helpdesk passed it on to Trust and security, indicating it would take some time as it was a company booking. That was not visible at the time. He seems to have left a review, which did not appear, whilst mine did. Airbnb had promised to watch it and remove it at the slightest indication of inappropriate content, so I believe that was the case.
His profile is still up and I get a message now and then, like we were old friends.
What would interest me: who is notified in case of a problem or mediation about damage: the company or the guest?
with whom the decision is made to refund?
If the guest should be blocked from ever using the service again, how is this achieved?