I didn't know that, and I've been reading him/her for years now. In fact, I may have assumed from the way he wrote that he was a well-educated older female. Never thought about it that hard.
And Spoon is right. The problem wasn't that Hillary was a victim of sexism. The problem was elsewhere. It was the war, it was her consultants, it was the strategy, it was a number of other things I might document elsewhere that suggest they just did not get what we have all been upset about for the past five years. You can't run what is (basically) a "reelection" campaign in a year when the people want to throw out all the rascals.