the cry of "Diversity!" is invoked exclusively by those who are trying to import to a group those demographics which tend to offer political support to the left.
I wouldn't mind "importing a demographics which tends to support X" assuming that we continue using the existing filters on content, and require rational comments and avoiding mindkilling politics. The difference between 55% and 44% seems unimportant, because we don't use majority voting in LW anyway. It's not like a 5% advantage would make someone win or lose an election. Unless we really lose our basic community values, it wouldn't even mean that the minority group would automatically get negative karma for every comment.
I am more concerned about "importing a subset of a demographics, selected by its support for X". As a strawman example, by suggesting that we need more Obama-voting women, but we actually don't care about Romney-voting women. As a more realistic example, by trying to optimize LW for women from the feminist / social justice warrior cluster, instead of for women in general. (Because, you know, there are also women who prefer free speech, and some changes would make LW even less attractive for them.)
Therefore I think new demographics should be invited here, but in a way that does not signal preference for a political group X. Specifically, we should invite women, not feminists. (If some of those women who come happen to be feminists, that's perfectly okay. As long as they are equally invited if they are libertarian, conservative, neoreactionary, or whatever.) If we want to invite the demographics, let's really invite a demographics, instead of making a power grab for a political group X in the name of inviting the demographics.
(Reply to old post.)
That would allow a "getting out the vote in the white sector of town" sort of abuse, where either
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:
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.