As far as I can see Nextdoor is a zero-revenue me-too social network with <1million daily active users after four years, whose main distinction is that they've raised >$200 million. Maybe it's the slickest thing on the planet, fantastic at engaging its relatively tiny number of daily users and it'll take over the world once people like me are able to join. But could it also be a VC mugpunt on either growth or a flip to Google/Facebook with some serious liquidation preferences underpinning that valuation?