the font thing - http://paulirish.com/2009/fighting-the-font-face-fout/ is a good article on the subject - is it really that stroke-causing, honestly? to have a font change a bit after the page loads? in the article linked, paul irish seems to endorse the webkit view that the text should remain invisible until after the font loads, and then display - anyhoo,
tl;dr: yes, it has to do with using @font-face and firefox and opera displaying unstyled text before the font file is loaded.
The font resource is obviously taking a while to load.
I opened the page in Chrome and page with just the fixed width fonts until the font finally loaded 30 seconds later. I was wondering if it was some kind meta-joke about blank pages. All I saw was the text "about:blank" placed randomly around the page.
The problem was that it changed a little at a time. First, the about:blank instances. Then, the headline. Then, random sections of the paragraph.
It didn't kill my family or send me into a migraine hell or anything, it was just distracting - I'm trying to read here. (I wonder how well it would work on a very slow connection.)