I think a decent number of people recognize it's something of an issue, especially in corners of the Unix world (at the extreme, folks like rms, Theo De Raadt, and Ulrich Drepper are, uh, rather abrasive), and not only for gender reasons. There are a lot of "write good docs, be friendly to questions" kinds of initiatives floating around, and to pick one example, it's one of the nicer aspects of the Clojure community versus (parts of) the CL community. Not saying it's solved the problem, but I do think recognition that the classic RTFM approach isn't the best has been one of the bigger changes in the open-source community in the past decade. Projects also seem to increasingly write web-pages where the front page tells me what the thing actually is, instead of assuming I must know, which is great.
