We have notice a definite increase of last minute cancellations of reservations since the change in policy. This is very unfortunate because you do not always get it filled again. I would like to suggest that Airbnb list cancelations on peoples profiles (just like they would for hosts) so that host can decide if they want to accept a booking from someone that has canceled many times in the past. Current policy just do not seem fair or balanced.
I posted this in discussion as well before I realized this forum exist.