In games like Destiny or CS:GO for example, you should not even be allowed to start the activity without a working microphone. I dont care if you are antisocial, if that’s the case, those activaties aren’t for you and you shouldn’t bring down your entire team because of that.
As an clarification, I’m more worried about Raids than PVP
Not to mention that women are consistently sexually harassed in games, and leaving the mic off allows them to remain gender ambiguous