The targets that show out that made me think this could be possible were these things:
-The fact that the characters have pets, in which PETA is against the ownership of animals.
-Fluttershy snapping a bears neck, nothing needed to be said here.
-There are a few fights between ponies here and there. PETA is also against animal on animal violence, in fact, they decided to make carnivorous animals vegetarian. (Which I didn't they could be that f---ing stupid to change the food chain where there could be a possible overpopulation of certain species, science science, technical bullcrap, yada yad yada; You get the idea if you've gotten past 5th grade or something like that.)
-Fluttershy's one suit in "Magic Duel," who knows if it's some sort of obscured animal, i think it might represent a rabbit. Remember Mario 3D Land?
There can be more, but I want to get to the point. Either way, PETA's not helping the world because they're not actually saving animals, instead they're making dumb@$$ conspiracy theories.