I experienced the same. Even the BBS' that deliberately were set up as social hangouts, which had the greatest ratio of women to men participants, still skewed

I experienced the same. Even the BBS' that deliberately were set up as social hangouts, which had the greatest ratio of women to men participants, still skewed about 70% male. I never saw it reach parity online, but interestingly, face-to-face parties brought out an evenly-mixed group as BBS users attended with spouses/girlfriends/boyfriends. I see the current generation computer users' behaviors addressing this imbalance in user population, though not the software development business that produces that utility (lots of hygienic factors adversely impact the majority of jobs in our business now, compared to the state of the business 2+ decades ago).