Not seeing the forest for the trees
I hadn't noticed that visited links weren't changing color until you pointed it out. Damn. I agree that it's serious, but I'm flummoxed at the moment about how to fix it. I won't bury you in geekiness, but an aspect of the Nexus design requires that script edit the URLs in all those links, because the Nexus is in a folder separate from all the boards; and once it does that, the browser can't compare them to its history database to change color. Damn. You just found a fundamental flaw in the design, M. Vulpus!