Many hackers I know do have other hobbies besides hacking and they devote lots of time to those hobbies. Beer brewing, coffee making, writing poetry, music, languages, …
What if one of those hobbies is dressing fashionably? Or makeup? Or whatever?
Beyond a certain point activities are zero sum but do you seriously suggest that to be a proper hacker you have no time at all for anything beside that?
I don’t think anyone should ever feel obligated to be into dressing fashionably or makeup or even just feel obligated to dress a certain way. That’s awful. (I especially hate gender policing.) But telling someone they can only be part of the group if they aren’t into makeup isn’t all that much better than telling someone they should wear makeup to represent women better.
It’s a heuristic for identifying in-group people that makes no sense and to me seems highly destructive.