The second sentence doesn't support the first. Airbnb is just doing the minimum to keep up with everything else. Having additional charges is very common inside

The second sentence doesn't support the first. Airbnb is just doing the minimum to keep up with everything else. Having additional charges is very common inside and outside of booking places to stay. The actual price usually falls somewhere between 2% and 30% extra, so it's not like there's no relationship between quoted prices and the final prices. The exception on AirBnb is cleaning fees. For that, they're helping out their hosts, who would otherwise feel pressured to charge $0 for a cleaning fee, which just isn't fair. Another exception is airline fees, which is solved by showing the total price. Often a cheap flight will have a laughably small airfare, sometimes less than $10. There must be some regulation that has the airlines show the price including taxes. This doesn't apply to many other things though, including cell phone bills.