A friend of mine (Sheri Herndon) just sent me an email which I replied to. My response felt like it should be capture (and probably expanded or built on more in the future) for a glimpse of why we're building Ceptr. In fairness, she knows a lot of what I write in my answer, but it was in part to share the purpose behind Ceptr to the others copied on the message who I may meet tomorrow at the Platform Cooperativism Conference..
From Sheri: