I've read into this and the conclusion I've reached is Andrew WK is a real person who is doing an elaborate Andy Kaufman style bit to suggest he's not a real person, but rather a corporately owned character. He's doing a mysterious ARG about himself basically. I also think it's something he's doing for fun or artistic reasons, I don't think there's actual weird legal stuff going on. Also I kinda believe he wears a wig and/or facial prosthetics as part of his...pretending to be a character pretending to be a real person. I've seen videos of him in studio settings with a completely different look, like shorter hair and a different look to his face. He probably does this to make it seem like he's more than one person.

A former classmate of his recalls an instant where in an acting class the students were all talking about their ambitions for the future. Andrew WK said something like he wanted to "construct his own non-existence." Like it's his dream to leave a confused, almost mythical legacy.