Surprise girls in documentation

Why do neckbeards writing technical documentation always have this urge to refer technical people as "she" in their text?
It happens so often an ignorant observer might conclude that computer stuff is a secret girly club no boys allowed.
It always seem so transparent that they mean "WELL SEE HOW I MENTIONED CUNTS HURR I AM SO PROGESSIVE DESPITE BEING ONLY THREE PROVEN WOMEN IN MY FIELD OF EXPERTISE [spoiler]AND ONE OF THEM BEING LEAH CULVER[/i]" with their refusal to use the default "he" or the fancy (and possibly gay) gender-neutral "they".

>>5
But its prevalence seems shaped like an inverse bell curve, you only see it in literature read by only one gender.