Superficial?

The founder of Digg, Kevin Rose said in an interview that he wanted to combine the most disruptive ideas in social networking, blogging, online syndication, and "crowdsourcing" in order to build a website where the democratic preferences of thousands of users would create a constant scroll of stories ranked by popularity. On Digg, users submit stories. If other users like a story, they can "dig," or praise, the story, or, alternatively, they can "bury," or condemn, it.
The common criticism of Digg is that what tends to be dug is often superficial. Are the most popular stories that rise to the top of Digg the best stories? Good question - I don't have time to find out.