@Lawrene0 Thanks for researching this further. Speaking in general ...
I could see that Airbnb would want guests to review the host, but detracting from the host for the 'in-action' by the guests borders on very weak other-directed thinking. Are hosts suppose to ham for reviews now? Count me out.
In my particular case, I provide a Guest Book where my guests share their most emotional sentiments during their stay, at the moment, and are very hesitant to repeat what they felt in a public forum. The Bird Island Guest Book is a great read, every guest reads it religiously. Even those that do leave a review (50%) oftentimes start with - "What else is there to say that hasn't been said before"
My stats must surely confuse the hell out of Airbnb:
The chart begs the question: Why would someone get 5 stars 87 times in a row and yet it is not reviewed more than 50% of the time?
Maybe because 50% of my guests simply do not feel like it.