And this gets into a related issue -- male/male affection in general is often strongly proscribed, at least in Western society, to the point where a risk of censure for the mere possibility of a sexual component is a real risk.
It should be noted this is a recent phenomena. This wasn't at all the case in the 19th and early 20th century.
Clearly a whole lotta lower-status creepy men who feel like social outcasts need to start doing something to shake this homophobia and this obsession with their own sexual dissatisfaction, and the rigidly-framed societal narratives they're willing to accept that being fulfilled within...
The vast majority of modern societies where male/male non-sexual affection is considered normal are incredibly intolerant of homosexuality, like say Sub-Saharan Africa, the Middle East and to a lesser extent other Mediterranean cultures like say the Sicilian one, so I'm not sure it is useful to frame it in those terms.
The unfortunate norms basically arise out of the following: "It is socially acceptable to have sex with men, the standard social identity for that assumes you have sex with only men, how do I signal I don't have sex with men?"
The vast majority of modern societies where male/male non-sexual affection is considered normal are incredibly intolerant of homosexuality
Yes, but within each society ISTM that the individuals who display less affection towards members of the same sex tend to be the more homophobic ones (possibly because homophobes don't want to be seen as showing more same-sex affection than the typical person in their own society).
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)