I've been to many other forums, and, much like here at MacRumors, there are normal topics and "hot" topics. I always understood a hot topic to be one with a set number of posts (15, 20, 25, etc.), and once a topic reached that number it would be considered "hot." Here at MacRumors, however, I've seen topics with only 3 replies be considered hot, while some with 9 replies are marked as normal topics. What's up with that? Is there some other reason why some topics are hot and others... how shall I say... are not?