Can I ask a question about your question? What conclusions are you looking to draw from the answer? How is this ratio relevant seeing as majority skill-sets of HN regulars neither favours one gender or another?

Why not simply out of curiosity ? People have a tendancy to assume tech people are men, or that people on the internet are men. I myself always picture HN users as 25-35 y.o white men with a beard and glasses. The Silicon Valley stereotype. Sometimes it's interesting to get a picture of what the HN community is actually made of, without any other conclusion than "oh, ok."

Yes, I am usually assumed to be male here, and addressed as such. I don't mind it really, and I understand why it is happening tho.

Honestly, I don't understand your question. I am not using HN for hiring leads, so I don't understand how skillsets of HN users are relevant to my question.

I am not looking to draw conclusions, just to get an answer to my question.

I think my issue was, that there is already so much gender segregation online and in real-life, that bringing to a gender-neutral place such as HN seemed unwarranted.

Sometimes it's fine, not to know.

does HN do demographic yearly surveys?

That's not a reliable way to get data. Because you'll get different results depending on the time of day.