i did not understand what is this. A better introduction on what it does will more likely make me register and give you my data. If i do not know exactly what are you going to do i will never let you get in my account. More info.
I also closed it the second it asked to post on my wall. You need to make it ask when you intend on doing it, because there's no way I will ever sign up for an app that asks to post on my wall.
I took out asking for publish_stream permission so instead all sharing is done through Facebook Dialogs. I think now the app is at minimum friction and maximum sharing. What do ya say?