This. Someone forgot that troll protocol 101 is to ignore the troll. No matter how outrageous the slur. Someone is equating internet trolling with credible threats. The silence is therefore not misongynic assent, it is years of Internet culture training.
I'm a man, I've been threatened directly by trolls, and the only way to make them go away was to set up a kill filter and forget what a remailing bastard's ethics eventually spiral down toward. The severity of the outburst is belied by its impotence. CF: Gabriel's Internet Fuckwad Theory.
Things also tend to get exaggerated in text forums; this is a natural symptom of text medium discussions. A mildly worded response of displeasure is not enough to express severe displeasure in text. So things get "fuckity," at the very least. Nobody thinks it should get to the level of death threats, but sometimes it does, because someone wants to get a rise out of someone in text.
Now what gamers, and other internet board goers, have to understand is that feminist protocol 101 is go after anyone who threatens a woman, no matter how non-credible the threat, in order to silence her. This is a foregone conclusion to anyone who is a feminist. They are doing what their culture indicates they should do, as an automatic reaction. In face-to-face, physically close communication, it is a foregone conclusion. You must not back down from it, because historically women have been intimidated out of social spaces in exactly this way. It is part of making the world a safe space for women. The record is a winning one, and isn't about neutering men, it's about fighting gender based domination plays.
What we have here is a culture clash. Internet 101 meets feminism 101. Both views work in different ways that are fundamentally in conflict. The only way it goes away is to stop telling the women to "toughen up," take them seriously by their cultural touchstone, and tell them personally that physical threats are intolerable, but best ignored on the Internet. If a threat is viewed to be particularly credible, it is better to go to the police than to petition the greater Internet community to "shame" them, as if shaming would stop a credible threat in the first place.
And various people have had to go to the authorities over GG. The threats have been perceived as credible, no matter what your opinion. If you cannot wrap your skull around that, sit it out and don't tell people to "get over" what they perceive to be real threats. Support them.