I worked at OkCupid long after Chris Coyne and Max Krohn abandoned it. From the vestigial remains of the founders' code and features it was clear what their main objectives were: have fun with cool tech, on the dime of VC funding. As soon as they got bored, they moved on to the next thing. KeyBase is the same pattern. I mean, good for them, they're successful by any measure - how they spend their time and how much money they have. But this outcome was to be expected.