But don't just stick to points as a means of deciding on the best design! Most of the top ranked designers have been here since the early days -- some of us only recently discovered the site. But that doesn't mean we don't do good work!
I think Tini put it best, EggPharm. If we don't win the money, it's nice to at least get some points. High rank doesn't earn designers anything on its own (yet), but it gives us the illusion of an award for our time and efforts. And you're getting a professional quality logo for a pittance! I guess I'm saying that I think it shouldn't matter whether or not you understand why it's important to us, just take our word for it, and please think about that when you're ranking.