@Ian-And-Liz0 What do you mean, "Guest reviews are unseen?". Of course they are seen- other hosts read them to determine whether or not to accept a guest.
Writing a positive review for a bad guest is called lying and is quite bizarre, especially when you then come on the forum to call the guest out.
And this is an international English speaking forum- the odds of anyone here ever getting a booking request from the guest are just about nil. The place to be honest about the guest is in the review.
Leaving positive reviews "on the basis the guest will do the same", is missing the entire point of reviews- it isn't some mutual admiration society- and as you now found out, is misguided.
Bending over backwards to accommodate an entitled, demanding, complainer won't earn you a good review, because that type of person is never satisfied, enjoys finding fault, and doesn't appreciate anything you do for them.