Atheist communities tend to be male-dominated, and that means that the women who show up tend to be atypical in some way. Those women have some personal background, some personality trait, that lets them cross the barriers that keep most women out.
The same is true of many minority groups. Atheist communities don’t have many Asian Americans, so the ones who show up are atypical. There aren’t many vocal aces, so the ones who show up are atypical. I showed up, so I am atypical.
Here’s something you may not have known. Atheist communities are dominated by men, but ace communities are dominated by women. Men make up 12% of the online anglophone community. I have data!