I recommend that you instead read some of the posts that have been upvoted on LessWrong. For instance, here[1][2][3] are some of the highest-voted, really good posts.

This article is sensationalizing a single downvoted post from several years back, and holding this up as evidence of LessWrong being stupid. By the same standard, I could paint any community-built website (such as this one) as anything I please.

[1] http://lesswrong.com/lw/4su/how_to_be_happy/ [2] http://lesswrong.com/lw/2pv/intellectual_hipsters_and_metaco... [3] http://lesswrong.com/lw/4e/cached_selves/