Hey everyone, I've been experiencing the same thing for around 2 months and I think I know what part of the problem is. I rent two rooms that have consistently been some of the best ranked in Barcelona during 4 years (4.91 and 4.87 from over 360 reviews for each,) and my booking rate has been a constant 100% until recently. I think the fact that the Airbnb switched from the visual star system to a percentage, number-based system has a lot to do with it.
Before, guests would easily see which listings were the best ranked while scanning the results (you'd see 3 star icons, 4, 4.5, and the few 5 stars) and that rewarded hosts like us who've kept a consistently high satisfaction rate and made our listings stand out from the crowd. Now, you only get to see small numbers next to the same one-star icon, and it's both hard to scan *and* makes the difference in rating seem less significant—when the user sees 4.2 and 4.8, the difference just doesn't seem that big (they're both 4 something,) while before it meant the difference between missing an entire star or a perfect, prominent 5-star score. This is especially relevant since the number of reviews is also less prominent, making the distinction between a 4.2 from 5 reviews and a 4.8 from 360 less obvious. I imagine this has been great to the places with a lower score, while hosts like me have lost the most from it (it's more about the title text and the photos now, the review score is less relevant when you scan for a place.)
I discovered that while searching for a place for an upcoming trip as a guest—it was actually hard to find the better-ranked rooms to shortlist, and I found myself paying attention mostly to the photos. From someone who's done UX design, I have no idea how that seemed like a good idea to the Airbnb designers, and not just because it's hurt me as a host—it actually makes finding the better-ranked listings harder as a guest, and I'm computer savvy. Imagine the average user . . . .
This seems to make results harder to scan, it takes away the benefits of the score we've worked so hard to maintain high, and it overall rewards the more mediocre listings and the more difficult guests. I feel like they could've simply added those small numbers instead of taking away the visual star icons, that would've accomplished the best of both worlds if they really wanted to be that specific.
That and the fact that Airbnb is now advertising HotelTonight results seems to have dramatically affected my bookings and what I can charge. And this happened just after I spent thousands getting and preparing 2 new rooms to advertise on Airbnb . . . ouch!