If you were Google, which would you rather sell to advertisers, correlations between groups of five people of fifty?
I mean that is it known that in current social networks a life-time value of a person that with 5 strong relationship ties is less valuable over time than a person who has 50 very very weak ties (like most of my Google+ followers, people who I don't know)
What is Facebook's motivation for connecting people? Or Google's? Or LinkedIn's.
A newspaper sold millions of individual pairs of eyeballs to advertisers. I would think the large numbers of correlations available in a largely connected network would be much more valuable than unconnectable individuals.
I would rather sell a network that people want to use over one that they don't.