I'm on Linux, whatever that blog falls back to is dreadful.

Looks great to me on Ubuntu—very similar to the screenshot two levels up, only slightly differently spaced.

unless you use Chrome on Windows http://i.imgur.com/aoPOh.jpg

If you use chrome on windows, pretty much any web font is going to look like shit. I don't understand why google, one of the biggest pushers of web fonts, can't make a browser that renders them sanely.