There are likely some positive articles about Facebook posted to HN daily too, but they don’t make it to the front page. There is a great deal of anti-Facebook

There are likely some positive articles about Facebook posted to HN daily too, but they don’t make it to the front page. There is a great deal of anti-Facebook sentiment here. An anti-Facebook article is much more likely to reach the front page than a positive one in this community, and that’s why it seems like HN is overrun with negative FB articles. Positive articles exist - they just won’t get upvotes here.