I would love to give feedback but I can't even try the application, maybe that's why the comment section here is filled with comments related to Facebook... I'm not the only one who wants to try it out.
Apparently the guy didn't want to go through the hassle of implementing a login system and the dependencies that involves (ability to send password reset emails mainly).
If I were you, I'd make a fake facebook profile just for situations like this.
If I were you, I'd make a fake facebook profile just for situations like this.