I don't see why you'd take it to such an extreme. All it would mean is that chatter on medium to large open media is largely fake. Not necessarily a bad thing since a significant minority of it already is, but many people don't realize. But you'd still have endless personal networks, friends from real life, and so on.

I think the general outcome is simply a devaluing of open online chatter as a whole, which I definitely don't see as a bad thing.