When I look at a list of topics I see a column of circles on the left of the page. Some of those circles are sort of scrolling, some are red and some are blue, some even have little red stars inside too
Blue topics only have a couple posts, red have more, scrolling red mean that it's a hot topic that has a lot of posts. The ones with arrows mean the thread was moved.
Red = new posts have been added to the thread since your last visit.
Blue = no new posts since your last visit.
Scrolling = more than twenty five (i guess) replies.
Nothing will get you dead quicker than being deadly serious about yourself.