I don't know about this case, but it seems entirely reasonable that to argue for including the name, or not.
Plenty of public personas have aliases they wish to be known by, but their Wikipedia article prominently notes their real name.
So by definition it's not exposing any information you can't find in other public sources.
Whether it's notable and something that should be included is another matter.
In any case, I'm saying that if you look at the articles for Madonna, Bono, Jenna Jameson, Marilyn Manson etc. you'll find their real name displayed prominently.
We can't form our own opinion in this case, as the GP is deliberately keeping the specific article in question hidden.
But in general this seems like a thing two editors could reasonably disagree about.
For the section in question, see: https://en.wikipedia.org/wiki/Wikipedia:BLPPRIMARY