no we don't verify personality types. That'd be creepy. I started SfD for a personal reason (in fact I posted it here at HN first saying I didn't have friends). People like me would be my target audience, I decided. Them extroverts have enough friends already.

I used Pyongyang as a form of negging. The idea was to use repugnance to force people to change the form. There is a IP geolocation version coming out really soon (as well as other features)