“Passionate fandom” applies only to generally male-dominated fandom? Or, why is slash squicky, yet “mylar bag” fandom not?

As part of a discussion of viral marketing on Cinema Blend, an unwarranted swipe was made towards (generally) female experiences of fandom, while praising (generally) male experiences of fandom:
“passionate fandom,” [is] something that happens when people get together to geek out about what they love, whether it be at conventions or through computer screens. Passionate fandom can be [...]