I just don't understand why it even matters? Why do you care if people know? Why do you want to force your care to know on others? We simply don't care.
First off, still want to note that you clearly do care, or you'd have walked away by now, but I'm going to continue to assume good faith and respond.
Do you propose banning "AZNGamer" or "BlackNerd"?
How about "GamerGuy" or my own name, "Girlfiend"?
What about your name? That's your twitch account, which is personal information that I don't care about. Can we call that inappropriate?
Why does [GAY] need more scrutiny than any other nickname?
Basically,
I think being gay is cool, and I'm proud of who I am and how hard my community has fought.
I think visibility can be great.
I know there are other LGBTQ people who play this game and feel similarly.
There are out, queer characters in the game, why is my identity reserved for in-game characters only?