Wow, no callers huh? Shoot, I guess I'll go first.
I had first heard about MLP:FiM way back in December. Naturally, I scoffed at the idea of it. Yet a couple of my friends were persistent, claiming that it was "awesome" and "it's not like what you think it is". I didn't pay any attention until I sprained my ankle literally the weekend before Fall semester started. Bored, I decided to finally watch at the series. I couldn't bring myself to watch the actual episodes, so I watched the Bronycomms commentary for the first episode. Then the next one. Then I started watching TheOtakuAscended's My Little Pony Let's Watches. Then a bunch of fan videos. Before I knew it, I'm awake in front of my computer at three in the morning on Saturdays so I can watch people livestreaming new episodes.
Although I do like the show, I think it's disadvantageous to push it on others. That's what seems to cause the most anti-brony sentiments. And frankly, some members of the fandom scare me. Have you seen the gifs and fanart people made from "Lesson Zero"? Or the disturbing guy who came up with the fanfic "Cupcakes"? But hey, every fandom have those people.
I would also like to note that Bronies are not the same as Furries. There may be some overlap, but I'm not whining.
MLP:FiM is great but you don't have to like it.