I was looking at the portrait of Maxwell from the hidden page, there were some letters flashing in the picture. I looked up for sources and I found this picture. I don't know how to add a picture (and I'm not allowed to edit the page) so I'm posting here. I don't know if this picture is important or not.
This was part of a teaser for the Insanity update for singleplayer DS in early 2013. The meaning of this message was to lead players to look at the source code of that page for the next clue. You can see it in this megapost here.