I 100% agree with what everyone has said so far, i watch the show, but never would i rub it in peoples faces, if people ask me why i watch it, i'll try to explain it to them.
the people you're (jakj) talking about are annoying, but i do understand why. for a lot of them, its their first fandom and they're very excited and want to express their excitement, sometimes in stupid ways. But i like to think that for every over-intense "annoying" brony, there's 4 more mature bronys you dont see.
everyone has to take a step back and see MLP for what it is, a cartoon. A pretty wicked cartoon with awesome fan base content but still a cartoon. So those people that hate on bronies, and those bronies that are immature, stop being bags of dicks and see it for what it is!