And - don't forget - people ripped her company a new asshole for daring to fire her, whereas the blowback to the company that fired the guy was negligible. Despite the fact that she was clearly, unambiguously, and disgustingly in the wrong. I'm sorry, but overhearing some private conversation does not give someone the right to chime in - or take a picture to shame publicly. And "sexual" is not "sexist", and she was so caught up in her own narrative that she misinterpreted innocent talk about wanting to "fork the repo" (that the on-stage developer was talking about) as something sexual. A dongle joke is vaguely distasteful, but it's hard to see how it affects anybody at all unless you consider the idea of sexuality to be violence against women. Yes I know some people actually think this, but then there is no conversation to have.
And yes, what the trolls did to Ms. Richards was despicable and completely out of line. Rape and death threats are never appropriate, but (on the internet) rarely threatening. There's no getting around the fact that had a man done this to a woman, there would be few rape threats - maybe some death threats. But the overall amount of, and substance of, the blowback would be far, far greater. Look at what they did to Larry Summers for stating a scientifically uncontroversial fact (men have a higher standard deviation of intelligence, which leads to more men at the highest and lowest ends of the spectrum despite average intelligence being the same). It cost him his job and a presidential appointment. And it's only gotten worse since then!
The lesson was: if you're a man, don't ever offend a woman or your life will be ruined at a distance. And you don't know what might offend a woman, and there is no recourse if you didn't mean to cause offense (or can't understand how something could cause offense) since it's in the eye of the beholder and (explicitly - it's offensive to suggest otherwise) not open for critique. Ms. Richards lost her job as well, but her job was as a "developer evangelist" and none of the (predominantly-male) developers would ever risk speaking to her after that incident, rather compromising her effectiveness.
I'm very much a feminist, but "feminism" is no longer about the simple idea that "women and men are equally capable of both good and bad". Hint: how often do you hear "feminists" say in the same breath that we need equality and more women in a field, because women are better? No, I don't mean "diversity of opinion" (which I completely agree with - we need more women, black people, older and younger people, etc to make sure we make the best decisions), I mean things like "sexism is bad and we should have a woman president, since there would be fewer wars". Even if it were true that women in power act differently than men, which it's not, the proponents obviously don't at all think women are equal.