Who the heck is Cassie?

Okay. So I posted about not knowing what happened with the Cassie stalker thing and pseudo anonymity. I got the response from Natwwal that pseudo a. knew the identity, and is to be approached in person to find out the secret. I say nay, class, we shall rise up against this secretive tyranny! Tell us who Cassie is! You sparked my interest with your project - you can't go all MIA on us now, P.!