Not Sure, burning question, is Elwood a sock? Or is he some sort of Manchurian Candidate plant of Steve Dave's?
and welcome 
I think you're asking the wrong question. To me, Elwood is professional wrestling when I was 11. Somehow the referee was always distracted while a ladder and chair were always conveniently pulled from underneath the ring. Even though you knew something didn't sit right, was it not still entertaining? Did it really change anything? Rather than get to the bottom of Elwood, just enjoy the magic. The sock intrigue makes it that much better.
And I have no idea if he's been banned on not, but I can infer a few things. a) nobody at the house really knows who he is b) it drives him nuts that no one knows who he is c) his anonymity and bruised ego is the perfect storm for him to act creepy to freshman girls and steal more food at the house.