Ah come on guys. All this talk of new matrix entities, dragons, etc is really kind of pointless.
We have a precedent for the A. Nonymous posts, a defined time and place where Jack Points defenses were breached completely along with evidence who did it and thus who or what is behind the posts: The Consensus
And here's the evidence supporting that guess:
Horizon's CEO Gary Kline emailed Sunshine about the Consensus directly, and in Fast Jack's own words breached his security. Fast Jack himself traced the email down to Kline's computer, and vowed to investigate.
Then, the Dawkins Group infiltrated and spied on ten, if not more, members of Jack Point. Collecting not only their identies but also how and when they accessed JP and how and where JP could be accessed.
Why would they do this? Simple. Fast Jack is inches away from uncovering the Consensus. He even says he's narrowed it down to a single location for where it might be.
The Consensus would hate the Azzies and media pirates.
Would consider Dragons and their 'ilk' backward and slow to respond
Would probably find posting comments about how good Horizon is amusing.
Would have access to secret Dawkin's group files about Kay (as one comment shows).
Fast Jack is searching for who or what Horizon's big secret really is, and I think it's pretty clear where things are going. (Even without looking at the release schedule of upcoming books...)
The real question, and one that hasn't been answered as far as I know, is who or what the Consensus really is.