I wonder if any other hosts have experienced with a competitor in the same neighborhood trying to undermine your rating by posing as a customer. Recently, someone booked our place for 1 night, we communicated with him well, all he ever responded was with smiling face. Then he left us the worst review, 1 star on almost everything. We figured out from his account he has an airbnb apt in the same building with us. He even copied some of our listing description to use on his own listing, which it is fine I don't really care. But he gave us 1 star rating on even the location. We contacted Airbnb and the rep I talked to basically said he did not violate any of their policies so there is nothing I can do about it.