I am perplexed why it is a bad thing I like cartoons that are comedic in nature, even if they are just glorified fart jokes. Some of them were incredibly well done and rather hilarious. Not everything has to be some serious, meaningful thing; sometimes, it's nice just to laugh.
So yeah, to each their own I suppose.
There's nothing wrong with comedy. There's everything wrong in how it's done nowadays, with the constant lowering the bar to get everyone, especially the lowest common denominator. But this is what the networks do. And it has nothing to do with the shows, and everything to do with the Internet, and their attempt to keep their customers on cable rather than their computers.
But that's a completely different topic all together.
Glad someone other than myself mentioned Daria!
Also, not to fend for the deepness of Spongebob, but there's a lot more to it than just a 'moron'. I don't think that Spongebob is a moron. I think people see him that way because he had a lust for life. He's the most positive cartoon character (in attitude) ever, and I think some people don't like that.
I personally enjoy his innocence and over the top optimism.
There's over the top optimism, then there's blatant marketing to a belief that the average TV watcher, especially under 15, has the literal attention span of a gold fish. Nickelodeon markets to the latter with Spongbob. Not to mention actively tries to squelch any other cartoon that might end up more popular than their 'flagship' (which Spongebob is.)
There's a reason everyone who liked Avatar: The Last Airbender was afraid it wouldn't have a 3rd season.
However, because of the incredible success of Spongebob's catering to the 'ADD' crowd, other networks immediately assume that their young audience is that easily distracted and try to make their stuff the same.