The links to related questions on the right of question pages have visited links as a dark color, and unvisited links as a light color. See sample:
- the light ones (1 and 3) are unvisited
This is confusing since it makes the visited links stand out compared to unvisited, rather than the other way around. Most other SE sites use a darker (or more distinct from the background) color for unvisited, for example Programmers:
- the dark ones (1-3) are unvisited
and Cooking:
- the dark ones (2-6) are unvisited