I wonder if the reason some girls choose stage names is because they are trying to keep their true identity secret and protect their privacy. If yes, I can certainly understand that and respect their wishes. Now suppose some hacker or exuberant self-appointed private detective nevertheless found out who she really is and wants to expose her. Unless I knew for sure what she wants, I would rather play it safe and not encourage anyone who may not have her best interests at heart.
Whoever she wants me to think she is, that's fine with me.