It makes for decent discussion.

It makes for some discussion, but it doesn't start at a particularly high point. I have read much more interesting articles about social networks on this very site, stuff written by Marc Andreesen and Paul Buchheit.

For example, the potential of social networks as consumer distribution model or as magnifying social capital is completely ignored here.

Matt's ability lies in catalyzing conversation, which is more important than making an article with 100 points but 0 comments.