"The woman who took the photograph, Adria Richards, soon felt the wrath of the crowd herself. The man responsible for the dongle joke had posted about losing his job on Hacker News, an online forum popular with developers. This led to a backlash from the other end of the political spectrum. So-called men’s rights activists and anonymous trolls bombarded Richards with death threats on Twitter and Facebook." Wow, this…
But there are a bunch of MRA losers on HN. How many, it's hard to tell; maybe a few that are very vocal, maybe a few with many sockpuppets, maybe a lot. If you ever get involved in a thread about any issue about women in technology, programs for encouraging women in technology, or the like, you will see them come out of the woodwork (and such threads will frequently drop off the front page as the long comment threads trigger HN's algorithm that try to discourage flamewar topics).