Anyhow, I read "belonging" as a coded word for "community", and wonder how Airbnb thinks they are going to culture their own community...
Maybe they will make a strategic acquisition? Lonely Planet, for example.
Or maybe they will bleed some of their profits into a virtual currency / karma that folks can earn, trade, and apply toward accommodations? Airbnb could tweak the karma economy to maximize profits while still infusing enough karma to bootstrap their community.