Trying to Decode Kicktraq's Hot List

I was very pleased this morning to see my Cthulhu poster project had made it back to the #1 slot on Kicktraq's Art Hot List. The project has been somewhere on the list for most of its run, but it hasn't broken through to the main Hot List. Its jump to #1 on the Art list today seems to be purely down to the fact that the project hit 1000% of its original goal.

What's got me puzzled is that it hasn't shown up anywhere on the main Hot List. I've had previous projects on the main Hot List and some even got close to the top for brief periods. The current project is outperforming anything I've done before, but doesn't seem to be registering. I then realized that the arcane formula used to calculate the Hot List must have a weighting element for different categories. All my previous projects have been in the Games category, whereas the poster are in Art.

I don't have a problem with it either way, and remain a great fan of Kicktraq regardless. Anyone else noticed any quirks with Kicktraq's math?