I have used AirBnB infrequently for many years. I always left a positive review and the hosts always left a good review of me. On my last trip we had power problems and a rotten door frame opening to the patio. The host was responsive and communicated well so I still left a good review. But this time the host never left a review for me. I haven't booked anything since then but I wonder if a lack of a host review is some kind of message being sent.