You can fix it with a simple user script for your browser.
User script, install to have black font in comment threads: https://gist.github.com/raw/1600378/95ad884caa17d8a02f1f425a...
And the gist: https://gist.github.com/1600378
User script, install to have black font in comment threads: https://gist.github.com/raw/1600378/95ad884caa17d8a02f1f425a...
And the gist: https://gist.github.com/1600378
With that said, I think HN is the only community where the maintainer of the site merely has to wait until someone fixes usability problems themselves.
It is frustrating to see a slew of "Boy, this feature really sucks/broken/why isnt it here?" posts. Not because they are wrong (they are usually correct, like this post), but because the automatic solution is "fix it yourself" rather than "why hasn't pg fixed this?"
It just strikes me odd.