The point of the article linked is exactly that: separate out the misogyny from the trolling. Expose how the trolls (or that particular troll) use any kind of story that they can construct, be it misogyny, misandry, censorship, whatever people at large hate or fear, to construct polarizing narratives aimed at damaging individual people.
I response to your implied question why this is perceived as much more interesting than an older submission of a talk by Anita Sarkeesian (which I didn't watch, I'm just extrapolating here), it's because it separates out the ideology part from the description of the trolling phenomenon. You don't need to drink SeriousPony's koolaid to hear her argument about trolling in general and this troll in particular.
You can't expose trolls by preaching to the choir, you have to talk everybody's language to subvert trolls' efforts to create a polarized discussion.
Note how OP's post was met with weird complaints that she "thought prostitution and being a victim of domestic violence were somehow 'shameful.'" - this is again trying to use ideology to polarize a discussion that should be troll-targeted and not ideology-targeted.
Note: I'm not claiming that we shouldn't try to discuss ideologies, just that it's something that trolls will try to exploit. And that the difficulty of moderating such discussions is why Hackernews doesn't even try to be welcoming to discussions that are or look ideological. Let's put it this way: the moderators here have a good track record for creating a pleasant, constructive discussion around technical stuff (including Windows and Linux and upstart and systemd and a host of contentious issues) and around business/startup stuff. As we find out how to have a constructive, non-polarizing, non-troll-prone discussion about other issues (global economy, misogyny/misandry, whatever), these things will be received more positively on Hackernews. (Or maybe: as much as they are somewhat related to YCombinator's business with startups).