Really, here's my view on it:
A vast majority of MLP-hating community don't even give a shit anymore, as far as I know. Why? Because the fandom is so damn big and has been here for so long, it's not worth giving a shit. What's the point in doing so if it's not going to change anything? You'll hate the show all you want, you'll hate the community all you want, but that won't make a difference. What WILL make a difference is being so vocal that you'll become less desirable in the eyes of bronies, non-bronies, and even some anti-bronies. The bigger problem is the MLP community. Back in 2010 and 2011 when it was a relatively small community (I said relatively, I know it was still fuckin' big) and the MLP haters were more out there and in your face. Most chose to ignore it. But now, the way the community is and what with the newer members who take this shit so personally, you can't say one thing below neutral of MLP or at least one person's bound to go off on you, whether or not it's meant to be ironic or silly, or you were being entirely serious.
tl;dr: Bronies feel even more like this shit's taboo, so they'll go on a verbal holy crusade to defend their girly ponyish honor.
I'd really love it if the brony community as a whole would just die, to be honest. You can hate me all you want for this, but the Internet would be better off if either the community was less obnoxious or just didn't exist.