Assuming it's not fake, I want to say Brad Maddox. What do you do with him now that he's been ostracized from Heyman's clique? Didn't Brad do a voyeur thing on the Brad Maddox Experience too? I thought maybe Brad would cost Punk the rematch at Elimination Chamber as revenge for his beating, but this is another decent way to go... plus, there was footage of Brad Maddox's beatdown on one of those videos. Some of the puzzle pieces fit for him, but not all of them.
What doesn't fit is the writing style, the blog is written more poorly than what Brad writes on his Twitter account... and also as a vanity sort of thing, Brad Maddox is under 6 feet. If you're going to have a scary masked guy, he should be bigger... otherwise he's not intimidating. He's roughly the same height as Big E, which is pretty shrimpy for a wrestler but at least Big E has the width and the muscle. Of course they can always go with a guy in the shadows that plays mind games rather than destroying everything.