For we bronies are usually exposed to hatred and prejudice, but similarly we can itself be hateful and bigoted. We should not judge others too quickly just because it provokes us. What I saw on that link were individuals who had fun at the idea of MLP:FIM.
I can no longer understand why bronies treat specific abnormalities like that would be a targeted attack against brony fandom, because if we want to be loved and tolerated, why do we have so hard to tolerate things that could be considered a different commitment to MLP:FIM.