@Leslie0
Airbnb could easily tabulate this data and share it with hosts, but in my opinion it would only feed into a loop of an already BROKEN rating system.
In plain English where would the veracity of the rating system go when one only hosted Guest who gave five star ratings, down the toilet I suspect.
In my opinion a sense of balance will only be achieved, when Hosts Rate Guests in the same manner a Guests rate Hosts, and Guests intent on blackmailing their Host with unreasonable demands based on a potential bad review will find themselves quickly black balled as they should be.