This discussion has wandered off topic, but I'll answer your question. The women's lack of activity here may be because there aren't as many designs for women, and/or because women aren't as inclined to actually create them with graphics applications. Therefore, they don't hang around Facer Community. There has always been a smaller % of females in all my tech communities.
Sometimes I change faces 2 or 3 times a day. Other times I'll go for a week with the same face. For me it's all about coordinating with what I'm wearing and what type of information I'll need during the day. My local friends own fitness bands, but I know no one locally with a smart watch that can change faces. Online colleagues tried them for a while, but quit after their batteries ran out. I probably would not have one if I had not received my Moto as a gift. Now I'm addicted. I dread the day when the battery needs to be replaced.