Due to the scam presence/leadership on this forum, most people tend to keep their interests secret. But most gaming platforms have inherent security, so all you can get from a username is that - the username.
Yeah the username ie what it get most but the voice can also be part of what the game could provide...
However, that doesn't necessarily matter since I can decide to use a different gaming username to play,it will be hard to identify a particular voice owner and that's even if someone is willing to house the mic button in the first place, so I can still choose to use my username without using the mic button .
Sure taking the step of creating a thread on off-topic about it could prove something if OP is trying to prove anything about adopting Gaming on the forum