The idea: Revised vision on privacy. Privacy is said to be very important, and must be kept safe by all means. I screenshotted my Whatsapp-conversations, just to test this idea and see if it would violate my privacy if they would be published. I didn't think so. It's the most boring info you've ever read.
The result: That's why I came up with the concept of an App that screenshots a conversation a day, then creates a postcard out of it which you can send to a friend.