The gears on multipage threads rotate. :smile: I'm sorry, I suspect I'm the last one to notice, but I was so excited I had to post. It is the feedback forum, right? I'll be quiet, now.
They're called hot topics. Any thread with over 25 posts is considered a "hot topic" and as such, gets a fancy icon (check the bottom of the forum and you'll see all the little icons there). Obviously, people are too stupid to notice the high number of posts in the "number of posts" column and actually need a seperate graphic to tell them that "this topic has many posts"¹. ¹I may be disgruntled at this because of several reasons. Many of which will make no sense.