I've often wondered about the gradual increase of idiocy in moe, but people loves them their mental retardation. It's a strange trend and the moe "genre" is quickly becoming stagnant, an almost pitiful repetition of the same shallow stories and character archetypes. But hey, it sells. And isn't that what really matters?
@John_Martone: I would agree, except that a show like Kaiba will never get licensed here, while K-On! will get an oversized release that the moetards won't pay for, thus making it even LESS likely that anyone will ever license Kaiba.