I had a group of five people book the minimum stay in my house for three nights and they ended up staying only one night, getting a refund for the others. I received a snotty email the next morning with a list of unbelievable reasons why they left. This was planned. They must have had another booking somewhere and needed just one night as a filler. My house is immaculate. I work very hard to make sure it is always so, but they managed to get a refund from Airbnb, because Airbnb does not care. My “case manager” never got back to me or answered any emails. They just let me get cheated by some rotten people who even were so low as to give me a one-star review, when everything was provided and spotless. I did everything I could: sent maps, was there to greet them… I told them if they needed me to just let me know. Never did they look me in the eye. They were fishy, because something was up. Had they communicated any problem whatsoever – there were no problems – I would have been able to act and would have done so immediately. Airbnb will not ever provide any means to contact them, so basically it’s a one-sided system. I am very upset about the fact that there is no protection against assholes.
That’s the risk you take. It’s a bit like ebay/Amazon which are heavily skewed towards buyers in their protection. If they make a complaint, as a seller, you have to give the buyer their money back because too many returns or bad reviews will see your shop closed down. Many on AirBnB make a lot of money so I guess you need to decide whether this is worth the occasional asshole or not….