I was thinking today about an Instagram or Twitter like clone that only allowed pictures taken through the app to be posted. You could use a model like the one TikTok released recently to do a depth map of the image and make sure it wasn't just a picture of a picture.

How would you bootstrap such a thing? I imagine offering a fraternity or sorority a portion of the company to get their members posting and then ad blitzing their campus and hope to spread from there.