In Croatia and a few other places, there are a lot of fake Airbnb listings. You can instant book them but they are not available and the host never answers. I once was stranded in a really dark and empty area of town because of this. The host provided a fake number even...
These fake hosts are still active, I can see the green dot indicating they are online if I look into the chat logs.
Airbnb did not pay for the hotel I had to book instead. I also couldn't use the meagre reimbursement I got on top of the full refund (at least...) because it was only valid for a month and I wasn't travelling at that time.
I still like the privacy and cooking my own food, but sometimes it's really terrible.