The concept of identity has always been a bit complicated. As Popeye always said, "I yam what I yam and tha's all what I am." True, but you're also how other people view you, which might be as a freaky sailor with a speech impediment. Identity in Ready Player One is just as complicated.The OASIS doesn't just let its users alter their physical appearance, it lets people change who they are. They can put their best foot forward, or let their more nefarious side show. Normal people can be warriors and wizards, and out-of-shape nerds like Wade Watts can be superheroes. Perhaps it's not all just playing pretend. These people have these traits inside them somewhere. The OASIS just allows them to come out in full force.