@Emiel1 In the past, this feature was used to pressure hosts to lower their prices. Never have I gotten a notification that someone viewed my listing but ultimately booked somewhere that cost more, even though of course that certainly happens all the time. You can't trust that Airbnb isn't manipulating the data it displays to hosts with features like this.
What advantages might it have? Well, if you're genuinely unsure about how to price and what amenities to offer to remain competitive, I guess it can give you some inspiration. But how much can you really extrapolate from the fact that someone clicked your listing and booked a different one? What changes would you make based on the resultant speculation?