One of the things I think is overlooked in stories about AirBNB is how bad the idea conjured by the explicit meaning of the name airbed and breakfast. Airbeds are a terrible guest experience: you have no privacy, no reserved space, you're sharing a bathroom, and you probably have a backache when you wake up. Almost no one on AirBNB actually offers airbeds. It's not until you parse "AirBNB" as something completely unrelated to airbeds that you start to think it might be a good idea.