There's nothing wrong with liking a kids show, especially if it's one you grew up with (although watching some Thunder Cats or TMNT now feels a bit dated... lol).
It's all the creepy "bronies" that take it into reality or turn it into some pedophilia/bestiality fantasy that creep me out.
Half of them have to be autistic or something. There's no way people can be THAT socially awkward and not have a mental deficiency of some sort.