This is what I see (Firefox on left, Chrome on right): http://i.imgur.com/RBs0E.png

Not sure if she's changed the style since you visited, but it's quite readable. I was tempted to put it down to me using a dark theme in KDE, but Chrome, unlike Firefox, doesn't inherit the OS default colours for web pages.

Yes, this font is a terrible choice for white-on-black. And as for the dark-dark-dark-suede-on-black portions, forget about it.

The contrast looks a bit better on my browser(Opera). Maybe the blog software wants to deemphasize comments(like HN does for selfpost text and downmodded comments)?