[biesnecker]

"I think that diversity of thought is more refreshing."

Given that Facebook (attempts to) model our existing social networks, and that the vast majority of people socialize with people of significantly similar cultural and socio-economic backgrounds, this diversity of thought is already (for the majority) a lie. We don't go to Facebook to see how the "other" lives -- we go there to get updates on friends that are comfortingly similar to ourselves.

The people that are willing to pay app.net's admission fee are going to largely be people who socialize with other folks who are willing to pay app.net's admission fee. It's no different than the clientele at a high end restaurant, and the existence of such restaurants hasn't precluded the existence or utility of lower end restaurants.