This is inspired by the Why Do People Dislike Cosmo? thread, in which I mentioned what I called an "idiocy progression syndrome". Every show has it's dumb character(s) and while they can just be comic relief, they often are or can become much more. In the past however people have mentioned that characters like Homer Simpson, Cosmo, Patrick Star, and others, while never the brightest flames in the candelabra, over the course of their respective shows became rather mindless and unlikable. Homer was a dumb father who did dumb things which might upset his family but in the end would rethink things, figure out right from wrong and make amends. Since then he's gotten more stupid and felt less guilty. As for Cosmo, to quote myself, he "became more stupid, annoying and ignorant instead of remaining the wacky, dimwitted fairy with a heart from seasons past." Then there's Patrick who was also brought up recently. I always thought he was one of the best written dumb characters of all. He was generally without a sensible thought in his head, but he would have the occasional idea or observance that could be momentarily smart, even borderline genius. Even when completely oblivious he was confident in his brilliant stupidity. In more recent outings, Pat's just different, or to quote garfield15, a "dumb buzzkill". Why does this befall so many characters? In order to develop a dumb character, can you only make them more idiotic until it isn't funny anymore? It takes a smart person to write a dumb character, so I guess the writers just aren't very bright.