The article itself is not so much interesting to me that the reactions to it on HN. The articles says nothing on how these differences translate into psychologi

The article itself is not so much interesting to me that the reactions to it on HN. The articles says nothing on how these differences translate into psychological traits/abilities etc. Nevertheless, even a hint that there might be differences, and that they're might be quite pronounced, somehow cannot be a subject of civilized discussion on HN and people will flag it straight away. Why? What are you afraid of? Understanding these results might help us to understand ourselves better. Or do you prefer not to have such research in the name of political correctness?