No, but I've seen the really POORLY drawn "characters." For the record, I consider the entire network a waste of time.
What cartoons are masterfully drawn? Were the Flintstones wonderfully drawn? Was Huckleberry Hound great art? Magilla Gorilla? Heck, in most cartoons, the people just have three fingers.
The point of adult cartoons, like the ones on Adult Swim, is not great drawing, but satire. Some suck, but some are pretty funny.
They're NOT POORLY DRAWN..
They are representations of early computer game sprites..
They're supposed to look like that.. It's the whole point behind their characters..