Going though the comments, it seems like few agree with the the article, yet it has been up-voted to the front page. I guess the people who are voting are different from those who are commenting. People who like the article are less inclined to comment, but rather vote.
One might upvote for different reasons rather than agreement. I've upvoted submissions because I disagreed but still found an interesting argument, or because it generated a good discussion in the comments.
