I have taken a new tack. It does require a bit of work and precision, though. I know how many reviews I have had for a property and what the average score is for each. From this I can deduce how a new reviewer has rated my property, especially since AirBnB gives us the number of 5.0 reviews and our average.
I then add a canned message every time I learn that a guest has reviewed me:
"As we exclusively host and as our guests' experience is very specific to the accommodations, all our reviews are given as replies to the guests' reviews of the specific property of ours that they rented. For a specific review of John and Jane [Personal information hidden], please click on my host-icon and navigate to reviews of our Property #123456."
I also score them as I, as a host, have experienced their stay. Since our reviews are never visible to the public or usable by the host community, I do not spend too much energy there.
I then mark my calendar and wait until the last day for replies to reviews. I then apply a standard of fairness that AirBnB does not (and thus the impetus for this long thread). If I truly believe that we have done a 5-star job and have not been recognized *or* that the guest was difficult, high-maintenance, etc., I put it in the reply to their review.
This is the only way I could figure out for leveling the playing field, especially since guests can see beforehand, when reviewing me and my properties, that their will be blow-back for unfair or trolling reviews.