Is this a standard blog design or is the author of this post also a very creative designer? I am really impressed both by the content and the design of this post.
However, it uses mac-specific fonts first, the free fonts (dejavu sans mono, bitstream vera sans mono) and then it falls back to Courier New and browser-set monospace font.
Courier New is ugly, but not that ugly. Was it necessary to finetune the cleartype parameters?