It would be great if the "# comments" links had a different a:visited color. Many times I can tell by the title of a link that I have no real interest in reading it, but if it has "30 comments" I think "Hm, I bet someone said something worthwhile in there." But if I read 10 comment threads like that and come back later in the day, I have no visual feedback as to which are truly "unread."