When viewing the Meta user profile, the difference between questions with accepted answers and questions without is pretty subtle. At first glance, I couldn't tell the difference at all. Can the contrast between the styles be increased a bit to make it easier to see?
This screenshot doesn't look too bad, but when looking at a list going down a whole page, it gets a bit difficult to pick one out at a glance. (I'm guessing even more so for some of the color-challenged users)