That paper describes the opposite effect to what OP is claiming - women as a whole get their pull requests accepted more often than men. I just skimmed the paper, but there was a large amount of explanations offered as to why this might be the case(e.g. only more experienced women contribute, women are more "well-known", women are making smaller pull requests, etc, etc) and all the ones I skimmed were rejected by the data. While there is probably a meaningful explanation(with lots of cators) why women are more likely to be accepted than men, at the very least, the incredulous proposition that gnupg developers were rejecting 100% of "female" patches is not supported by this paper in any way.