i think they are ridiculous. In real life there are no weight classes if a big 250 pound guy attacks you. you cant just stop and say wait a minute your not in my weight class. You would have to fight him. In ufc there should be no weight classes there should be one championship belt available to all weights. i hate the stupid pound for pound thing. I mean if your form of martial arts is truly a great fighting technique than size shouldnt matter. Like royce gracie for instance, he took on opponents much bigger in build than him. he is a gangly 6'1 guy with a small build yet thanks to his technique he beat larger stronger opponents. this was impressive because it showed weight wasnt an issue when you know how to fight. i realize they are in place to protect fighters, and prevent mismatches, but cmon these guys are fighting for a living, obvioulsy their safety isnt that great of a concern. IMO eliminating weight classes would make people love the sport much more. having weight classes in place is basically saying all that matters is size in a fight, which is dead wrong.