I usually search with specific dates for a stay, so it's weird that they don't summarize the listings by total cost instead of the nightly rate leaving out the fixed costs. That'd fix the problem, right? (Of course they could divide that total cost by the night count if they can't let go of normalizing to nightly rate. The point is to not incentivize accounting shenanigans.)

Overall I've been happy with airbnb as a traveler, but if they don't step up their game it's going to be like having been happy with the early web, or Amazon reviews in the early days when it was easy to ignore a few fakes. That general problem of evolving predators is hard, but this particular change seems easy.