And understandably so. Social outcast computer guys get resentful. They've been bullied, teased, excluded, derided, mocked, beat up, put down, scoffed at, and turned down for their acne, facial features, natural geeky curiosity, and (sometimes) poor hygiene and poverty.
Those that turn to computers as a safe, solo hobby eventually find each other. They commiserate. They create their own social norms and mores. These are not common social norms because "common society" rejected them back in middle school and high school.
It should serve as no surprise that when, in college or professional careers, some women actually want in on the computer industry, they have to wade into the dungeon of outcasts and deal with the stench of their resentment. The first to tread in can, hopefully, make a difference. But they have a lot of baggage to deal with.
You can even see this at fan conventions when "normal" looking girls get scoffed at for being bandwagonners because it is so incredibly difficult for the outcasts to believe that the people that look just like those who excluded them down throughout their adolescence could actually and genuinely have similar interests to their own.
None of that justifies any action taken against attempts at considerate nerd re-integration, but if you don't understand all of that before actually trying to make a change, you're going to be doomed to failure.
If people REALLY want to foster a better, more inclusive environment for all people in the computer industry, they need to foster a better, more inclusive environment for the young people that first choose the computer industry as a hobby. Prevent the de-socialization of those who would otherwise be social outcast computer nerds and you'll be working toward a better computer industry for the future.
But that's only if you want to do the hard work to solve the problem for everyone and not just take up a crusade for a certain few.