Thanks! Well so the inspiration for this came from just trying to get my wife to proof read my blog posts. Even a 600 word post ends up becoming a pain. I'd end up sending her a google doc, or email or whatever. She would end up copying and pasting it into a word doc and then resending to me so I could review her changes and only manually try to merge in the things I wanted.
I've found that even a couple friends can get a whole lot of use from Draft to edit something simple. I hear you though, and am definitely paying attention to the use cases. We'll see how it shakes out.