Good question.
The best thing about this app is that you choose its purpose.
You can use it to get to know someone better, someone whom you know, or have a crush on.
You can use it to ask general questions about human nature, then analyse it, to see if you're standing out or to get advantage of most people.
You can use it to think about things that you never thought about.
I mean, the possibilities are endless.
Well, maybe not, but there's a lot.