I'd rather have an altered "New posts" thingy. Have it only mark the thread as read if you actually read it. Right now, if I even log on, if I have no forum activity for some amount of minutes (I really don't know how long), then it marks the entire forum as read, so the "This thread has new posts" thing only works for posts the have occurred since my last activity. On most forums with this layout, they also have a "Mark this forum as read" button right at the top of each subsection, so if I just want to see anything new after right now without having to actually read everything, I can just hit that and I'm good.