That piece isn't bad. I'm not sure about the gear theory, but I will say that photographers online by and large constitute a toxically masculine hobbyist community. The "anger, irritability, and aggressiveness" the writer cites is the main reason I don't really post here anymore, and this thread is like a case study illustrating it!
Feminists are excellent at pointing out how weak most men are when it comes to being asked to examine their behavior, and maybe change it for the greater good. The defensiveness on display here is telling. There's a good reason this forum (like almost every photography forum) is 98% male—it's hugely unwelcoming to the vast majority of women photographers. I'm not sure where the next Arbus, Mann, Goldin, Woodman, and Maier are lurking, but it sure isn't here.