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.
The two aren't contradictory: emotional connotations can inhere in things and words.
The euphemism treadmill is what you get when the emotional connotation inheres in a thing. But what emotional connotation inheres in 'sexual promiscuity'? Even if it is there (and its recommendation by someone sensitive enough to emotional connotations that inhere in words [from the perspective of a specific thede/tribe] seems to suggest that it isn't), certainly there's less negative connotation there than in 'sluttiness'.
Similarly, it's possible to find loaded equivalents, or at least approximations, for most (all?) of Mencius Moldbug's caste terms. (UR is a good place to mine for these sorts of pairs, since he coins emotionally neutral terms to replace, or at least approximate, emotionally loaded terms. Of course, if you use them, you're signaling that you've read Moldbug, but...)