How can you say that this is not funny. Might look a bit unprofessional, might seem childish, as some members suggest - but I personally find that it goes well with the forum.
Basically, it looks at different stats on your forum usage and assigns you a different type of belt based on that data. I am not exactly sure the data points that determine who gets a green belt with yellow strips over a normal green belt, but who cares. :)
Forum discussion at SEO Chat.