Of course Mimi Sardinia is my real name! How dare you suggest otherwise!
It's my real name online and that is the only name almost everyone outside PayPal and my bank gets!
I don't put my real name online (aforementioned exemptions excepted), it's part of my personal policy of negligible online security (I say "negligible"because I bet someone who knew the tricks to do so would pull up my RL name pretty quickly). On top of that, my online name is my online identity. I am Mimi Sardinia here, sometimes MerrySard, and in a few places I'm still Majin Baka Hentai. I don't know how well known I am around Fandom, but if a Mimi Sardinia turns up, it's me!
So no, dA you are not getting my RL name because Mimi Sardinia is my real online name.