Open Source people, and Drupal people in particular, pride themselves on having a “doacracy”—a community that values getting stuff done above traditional authority. This could create a beginner-friendly, non-hierarchical environment of subversion and experimentation. In practice we just have white straight cis men getting SUPER DEFENSIVE at the suggestion that maybe they got where they are not only by the sweat of their brow, and shouting down any mention of patriarchy, racism, or any other systemic oppression when people run the numbers and get to wondering why there’s so little minority representation in Open Source.
On the other hand, I'm pleased to see things like the discussion over the expanded 'gender' field at Drupal.org (link here).
hat tip to geekfeminism.org