I'm not a woman, but I imagine that when you're a woman in a male dominated community it can create a lot of anxiety to participate in the community because women are often harassed or dismissed because of their gender or appearance. The harassers are almost always a small minority, but it only takes one persistent asshole to ruin your day and discourage you from participating. From what I can tell, the goal of this community is just to offer women a place to feel comfortable without being denigrated or receiving harassing or suggestive PMs.