the double buy-in approach is interesting, and being applied to a lot of different use cases - hr/employment, by Angel list, hooking up, via Bang With Friends (

the double buy-in approach is interesting, and being applied to a lot of different use cases - hr/employment, by Angel list, hooking up, via Bang With Friends (now called Down) and of course Tinder, and also dating via OkCupid locals... it's especially effective if the subject of connection is not something you wish to socially broadcast, due to stigma or fear of rejection (jobs/dates/hooking-up/etc.). There's a lot of untapped use cases where applying double buy-in would be effective, like finding a roommate. Or, perhaps situationally it could be effective and reduce the fear of rejection or awkwardness associated with striking up a conversation at a bar or at a convention, etc.