Nah, definitely not Bellware's style. He would just post in the list and argue it out in person, or post it on his main blog.
I have a few good theories on who it is, but I won't want to ruin a good thing by revealing Deep Throat :)
I have an even better theory on who it is (right to established personality, motive, timing, etc.) but likewise. I'm almost wholeheartedly convinced of my correctness in this manner (like all things) but I cannot bring myself to end a great blog by revealing this person's identity.