Everyone in this thread who's saying "it's just a piece of cloth that holds you pants up": it's not supposed to be though is it? If someone gives you a black belt, a PURPLE belt even, they're saying "you're a bad motherfucker". It SHOULD mean you're really, really fucking good. Getting a belt should mean you're so good that if you were still whatever belt you were previously you'd be one of the best of that belt in whatever country you're from. It shouldn't be fucking gifted out because you've been there a certain amount of time and are a "student of the sport", or whatever other honey-coating you want to give to gifted belts. If you're promoted to a new belt you should be fucking SMASHING everyone at the belt level below you. Purple belts should SMASH all the blue belts, regardless of size, brown belts should SMASH all the purple belts, and black belts should SMASH all the brown belts. If it's not done that way, this shit will start to happen more and more often.
I really dislike this "well, you know, black belts are humans too". They're human, but they're supposed to represent an extreme level of skill at a very specific task: strangling the shit out of people.