Why does it need to be mentioned that as a woman, you may not know D&D?
I usually loathe the sexism debates on the Internet despite their importance (I loathe the 'how', not the 'why'). But it's gotta be called out, that's an unnecessarily degrading sentence where I lost all respect for the author in a single punch.
I know it's predominately nerd/male. I don't play D&D but the only people I know who play it are one guy and two women. So that sentence really bewildered me and it shines a light on why not more women feel comfortable playing this stuff.