I'm using this right now and I still really don't get it. As far as I can tell, this does the exact opposite of a social app: instead of bringing together peopl

I'm using this right now and I still really don't get it. As far as I can tell, this does the exact opposite of a social app: instead of bringing together people with similar interests or relationships (like Instagram, for all its faults), it exposes me to people who I have nothing in common with except happening to be in the same neighborhood. I mean, am I right? Can that possibly be the point? There is a 'group' composed of myself and three other people I've never met, all of whom presumably live or work nearby—and then another 'group' that's not apparently any different, except I haven't joined it yet. I'll admit that some of my confusion is due to the completely opaque interface. EDIT: Ok, RTFA seems to indicate that these groups are fluid and intended to form themselves according to whom you hang out with most often, so presumably if I keep taking pictures then it will figure out who my friends are. That's a neat idea, but unfortunately still moves against my instagram-a-like point above: if we should have learned one thing about how people make friends in the year 2011, it's that physical proximity doesn't really enter in to it.