Dib: robot?

Okay, I has on Wikipeidia, and we all know Dib, right?

Anyway, I was searching for invader Zim, and saw that they where going to say that Dib was a robot built by his father to protect humanity. I think that is a pretty wild theory. But Nick thought of it, so I won't criticise it too much, but I still think Dib should be human. This show already has an annoying robot, right?
So, tell me your opinion. Gotta go. Mom's yelling at me.