I interpreted your comment to mean something like "talking about creepiness might make women leave faster."
I will now attempt to thoroughly dissect what I said after I thought you said that. Because why not :P
"Security through obscurity" is a model of security where talking about security makes you less secure - it's generally agreed to be pretty suboptimal. Drawing the analogy between not talking about creepiness to have people not leave and not talking about security to be secure is the surface point of my post.
But there are several flaws in the analogy between not talking about security and not talking about creepiness, which I refer to pretty subtly and form the main point of the post.
The first word is ambiguous: "security" for who? The analogy-ey interpretation would be for LW users, but the problem the "creepy obscurity" is directed at isn't keeping people secure, it's not making people leave, so the analogy breaks down. If we look at the part of reality where the analogy breaks down, the security that would be granted by not talking about problematic behavior is actually the "security" of the people who don't want to have to deal with the problem or worry about their community getting smaller, not the security of LW users in general.
Also, "creepy obscurity" serves two purposes. The first is to modify "security through obscurity" to talk about creepiness, thus drawing the analogy. The second is to be a little threatening by referring to the obscurity that gets granted to creepy people, and also referring to literal creepy obscurity. This second interpretation turns the sentence into a bit of an oxymoron, since "creepy obscurity" doesn't sound very secure at all. The oxymoron here could be considered a joke, like "jumbo shrimp" or "anarchy rules." But calling this an oxymoron also contains a rhetorical claim that keeping creepy people in the community obscure could not actually be secure.
And, of course the ", eh?" is there to imply that there's a joke. This is mostly just to say that I'm willfully misunderstanding you a little, but that I think it's fun to draw the connection from your post to "security through creepy obscurity."
One of the lessons highlighted in the thread "Less Wrong NYC: Case Study of a Successful Rationalist Chapter" is Gender ratio matters.
There have recently been a number of articles addressing one social skills issue that might be affecting this, from the perspective of a geeky/sciencefiction community with similar attributes to LessWrong, and I want to link to these, not just so the people potentially causing problems get to read them, but also so everyone else knows the resource is there and has a name for the problem, which may facilitate wider discussion and make it easier for others to know when to point towards the resources those who would benefit by them.
However before I do, in the light of RedRobot's comment in the "Of Gender and Rationality" thread, I'd like to echo a sentiment from one of the articles, that people exhibiting this behaviour may be of any gender and may victimise upon any gender. And so, while it may be correlated with a particular gender, it is the behaviour that should be focused upon, and turning this thread into bashing of one gender (or defensiveness against perceived bashing) would be unhelpful.
Ok, disclaimers out of the way, here are the links:
Some of those raise deeper issues about rape culture and audience as enabler, but the TLDR summary is:
EDITED TO ADD:
Despite the way some of the links are framed as being addressed to creepers, this post is aimed at least as much at the community as a whole, intended to trigger a discussion on how the community should best go about handling such a problem once identified, with the TLDR being "set of restraints to place on someone who is burning the commons", rather that a complete description that guarantees that anyone who doesn't meet it isn't creepy. (Thank you to jsteinhardt for clearly verbalising the misinterpretation - for discussion see his reply to this post)