[aayushranaut]

Pretty nice actually, but can't understand why one would like to use this. I mean if someone wanted this info to implement the API on their app, wouldn't it be tiring to go through millions of websites to get user data?

This sounds interesting, and maybe something like Gravatar can built upon it.

[daledavies]

I got thinking about almost exactly the same thing. But what value would such a service have over using a social login like Facebook, Twitter or Google, given that these are already well established?