many of us have made interesting and relevant observations about the gender we see around us,

...observations of a sort which are, in my experience, quite likely to be extemely inaccurate. Since we're doing anecdotal observations, I've observed that people's thoughts on gender differences, when not backed up with hard data, are maybe 90% likely to be seriously off base. For whatever reason, these sorts of perceptions seem to be subject to extreme effect from all the usual biases to the extent that I don't even trust people around here to have reasonable intuitions on the matter.

Also, I'd like to note that the post here included nigh-Yudkowskian levels of cross-linking to other material on LW. When we're talking about "conversation norms on LW", how is that not solid data?

Gender bias is not some objective feature of writing; it is determined and defined by our perceptions. Men seem extremely likely to perceive it differently from women (see almost every sexual harassment lawsuit). Alicorn has never been super outspoken on this issue and has never been confrontational about it. As one of the most active female readers of this site, if she perceives a gender bias in many posts/comments here that she believes warrants a top-level post, that seems to me to be very strong evidence that something is wrong. That fact combined with the data she did provide seem to me quite convincing that this issue is at least worth thinking about.

Also, if I understand her correctly, her objection is not to making generalizations without overwhelming hard data, it is to making generalizations without the humility appropriate to generalizations not supported by overwhelmingly hard data. If some little study fits a pre-existing belief about ev-psych and how the genders work, posters shouldn't be super-certain that it's correct simply because it conforms to their pre-existing beliefs. After all, being human, they may well dismiss a similar study showing the exact opposite effect without second thought.

We already hold discussions of politics to a higher standard - I see the reproof 'politics is the mind-killer' relatively often. And this without any particular post arguing that we're so hideously biased about politics that we need to hold ourselves to a much higher standard than on just about any other topic. And given that the long and very well-documented history of sexism and discrimination against women suggests that enormous masses can be completely wrong for long periods of time (both us and the ancients can't be right about women), we already have arguments that we specifically are massively biased about gender issues and should hold ourselves to unusually high standards.

Or, if the relevant comments Alicorn cited were about blacks, I don't think anyone here would even question the need for a higher standard. We all understand intuitively the appeal of racism, its long, hateful, and entrenched history, and that if we're going to make arguments like blacks are stupider, we'd better have damn good evidence - and merely anecdotal evidence like we see in the cited comments, which boil down to 'in my experience' and 'according to my armchair theorizing', will cut absolutely no mustard.

Seconding SoullessAutomaton's reply. Also making an analogy to discussions of race.

In addition: "overwhelming hard data" isn't too high a standard when prejudice and other cultural factors cloud the picture. I don't think it's too big a stretch to suppose that such factors are present in this case.

(Finally: a stronger emphasis on hard data in the meta-gender discussion might not be a bad thing, but remaining silent when a problem of this kind exists is a decidedly bad thing.)

To prohibit generalizations about gender without overwhelming hard data is usually to in effect silence the topic.

I think the concern is that a lot of these generalizations aren't being made through a good-faith attempt to unbiasedly order one's observations about the world. A lot of people see these arguments and have an (arguably often justified) prior that the individuals who make them are biased and/or bigoted. I realize that it can be frustrating to be told that you're being criticized because your arguments resemble those made by morally-reprehensible people, but.... it's often not unjustified for people to come to the table with those assumptions.

You also have the less-defensible argument sometimes being made that we shouldn't make these theories lightly because they often lead to cryptosexism. That probably won't fly in a rationalist discussion community, but it does in many other communities where the "social consequences" of one's speech are supposed to be a serious factor in its moral evaluation.

To start with, generalizations about what sort of gender? Chromosomal? Developmental? Self-identified? Cultural by nurture? Cultural by presentation?

Mostly we only see the latter and assume all the rest.

If people are going to make generalizations about the gender they see around them, I'm not going to insist on hard data, but I want to see the soft data. What did you actually see? Was your sample limited to a particular culture? How many instances are you basing your generalization on? Do you notice data which points away from your generalization? How large do you think the effects are?