I think this one by Yvain works as a plausible explanation for why this is unlikely to change.

I love Yvain's post on meta-contrarianism, and yeah, it pinpoints a major source of the problem. I guess I tend to be slightly more optimistic about the possibility of LessWrong changing in this regard, but maybe you're right.

Do you deliberately pick topics that cause controversy here, or is your model of this community flawed? Either way I find people's reactions to your posts amusing.

When I write my more controversial posts, I do so knowing I'm going against views that are widely-held in the community, though I often had difficulty predicting what the exact reaction will be.