I'm strongly convinced that the 'average HN reader' is well aware of this (sexism) problem. I don't rationalizing it, but I believe, the points you mention are

I'm strongly convinced that the 'average HN reader' is well aware of this (sexism) problem. I don't rationalizing it, but I believe, the points you mention are important. And in addition, yes there are idiots on the internet. And not all problems have a easy wrong solution... The blog post is (for me) shallow and the 'tests' would need to be expanded to be really interesting: what happens if you put on pictures from women from different cultures, ditto men from different cultures? Where are these insulting comments coming from? Does it also happen if you use 'less-into-your-face chat widgets'? etc...