A long blog post explains why the author, a feminist, is not comfortable with the rationalist community despite thinking it is "super cool and interesting". It's directed specifically at Yvain, but it's probably general enough to be of some interest here.
http://apophemi.wordpress.com/2014/01/04/why-im-not-on-the-rationalist-masterlist/
I'm not sure if I can summarize this fairly but the main thrust seems to be that we are overly willing to entertain offensive/taboo/hurtful ideas and this drives off many types of people. Here's a quote:
In other words, prizing discourse without limitations (I tried to find a convenient analogy for said limitations and failed. Fenders? Safety belts?) will result in an environment in which people are more comfortable speaking the more social privilege they hold.
The author perceives a link between LW type open discourse and danger to minority groups. I'm not sure whether that's true or not. Take race. Many LWers are willing to entertain ideas about the existence and possible importance of average group differences in psychological traits. So, maybe LWers are racists. But they're racists who continually obsess over optimizing their philanthropic contributions to African charities. So, maybe not racists in a dangerous way?
An overly rosy view, perhaps, and I don't want to deny the reality of the blogger's experience. Clearly, the person is intelligent and attracted to some aspects of LW discourse while turned off by other aspects.
I was following a thread from August on Yvain's site. The author of the blog post we are discussing added a comment there on January 4 and Yvain replied. I should have included this link in my original write-up. And since I've started criticizing myself, I should have left out my half-baked musings on racism and spent more effort on summarizing the post I was linking to. For example, it might have been a good idea to quote the following:
This shows that the author is able to taboo words in order to improve readers' understanding. A communication skill justifiably prized on LessWrong.
I find striking the addendum which is mainly a list of examples of objecting to tabooing words, but includes a footnote tabooing "politically correct." (though I find that particular tabooing in bad faith, unlike the example of "privilege" in the main text)