Yep -- as I was reading @danilo's original thread, and that anecdote of realizing the Airbnb founders were happy to let their users/community bear the costs of entirely-foreseeable problems caused by Airbnb existing, my first thought was that one trend that unified the big Silicon Valley firms that emerged in the late 00s was ...
... "shrugging off externalities" as a business plan
A venerable strategy in business, bien sur
But rediscovered with exuberance by those guys