It means that software (the product, not the community) tends to offer a binary choice for gender and a lack of gender-neutral forms of address (I go by Mx.). It means that the conversations around gender in tech tend to reflexively focus on "women" with "men" as their opposite, both essentializing gender and reinforcing a fictional dichotomy. It means being able to come to work dressed the way I want to dress without someone complaining that my leggings are revealing when half the office is in Lululemon (yes, that actually happened). It means that I can ask other people to respect my pronouns and feel supported by management and colleagues rather than feel afraid to speak up.
In other words, it means a hell of a lot.