PS. It's no coincidence that the Python has arguably the single most diverse and welcoming global tech ecosystem on the planet.
That happens *because* they make choices like this, again and again.
If you're in a position of influence or decision making authority, the questions are:
* What kind of culture do you want to foster?
* And are you leaving something on the table that would help you foster that culture?
Don't let yourself be cowed by fear of possible blowback on mask requirements.
Not only is that fear overblown, but giving into it prioritizes reactionary jerks over people who actually have something to lose.