Why not just ban them both?
Because truthfully the people opposing the whole pony nonsense haven't done anything wrong. Meanwhile, most of the pony crowd are just the usual morons while also stuffposting constantly in their thread and then throwing pony stuff around.
But the majority of the time, people only get banned for doing something that's really, really obvious, for example, walking into a thread and saying "i don't give a forget" and get banned.
But then you get people posting underage research and they don't seem to be disturbed or anything.
Your post proves nothing. You're restating the obvious, except "underage research". It's nonexplicit lolicon. It's pretty much equivalent to most of Trifax's posts in the Hot Girls thread. You're talking about non-nude alleged research here.
I don't want to get involved in this any further. My final word is that I don't really like the fandom at all.