Quick, tell me which of these questions I've clicked on:
That screen shot was taken in Safari, a browser in which I have done zero customization. (I keep it around just for tests like this.) I see the same thing in Chrome.
On meta, on the other hand, there's a difference (this one is from Chrome):
Could we get some better differentiation between visited and unvisited links on the front page of main? I try to read most of the questions, so I want the ones I've haven't read to stand out.