I think most of the responses here have people attempting to chain their own personal hobby horses to the issue of the gender gap. Sure, we have preexisting issues that could possibly alleviate that gap if addressed, but does anyone think that increasing RFA standards or ArbCom policies regarding admin civility are really the reason why we only have a preposterously large 13-87% gender gap. That isn't a gap, it's a canyon.
In the article, Joseph Reagle notes that we're “open to very difficult, high-conflict people, even misogynists,” and I think maybe those sorts of people are coddled too much on Wikipedia. For all the talk about admin civility, a newcomer is likely to be more put off by other editors than admins and a newcomer will likely have no idea how or where to seek redress. Even for established editors it is difficult to obtain assistance when faced with persistent incivility. Most websites have a "report a problem" link. Why don't we have one that directs newcomers to the appropriate noticeboard where they can request assistance?
Most of the text of the article is given over to a discussion of the gender gap in content. I had to start the article on Manolo Blahnik mentioned in the Times, and if you know how little I know about fashion, you'd know that's pretty sad. If the gender gap in content is off putting to potential female contributors and thus fosters a gender gap in contributors, perhaps we could help close the latter by closing the former. Contests to create more articles, featuring more of them on the front page, etc.