Most MLP fans I've been forced to encounter have shown a higher level of maturity, and education, than the majority of this community. Most of them, despite being on the Internet, can actually spell the majority of their words correctly. Shocking I know.
I'm also a big fan of cartoons that emphasize actually keeping the adults entertained as well since in the end we're forced to watch it when the kids are watching it. My Little Pony (talking 4th generation here, not the old ones) at least tries.