I think the biggest reason for lack of sympathy from anyone is that the platform was completely stagnant for years. I've been on there as a runner for a long time, and by the time there was any compelling reason to pay, those features had already been done either by browser add-ons or by Runalyze.

Additionally, having built (although never fully launched) an app on their APIs, they never really cared about the developer platform. There's plenty of stories around of their poor treatment of more popular apps.

And lastly, having heard stories from inside, it's just another fun times startup that burned money for fun and very little to show for it.