Sorry, but I just don’t buy that last paragraph at all. We ought to do our part, sure, but not because it’s other people who happen to be in a group that we happen to be in. Do it because you’re a decent human being. We ought to keep explicit stuff on the down-low, there’s no doubt about that, but it’s fundamentally not our responsibility, and the idea that someone would be held responsible and blamed for something they had no relation to and could not have reasonably have prevented, only because they’re part of the same multi-million-person large group, seems patently backwards. The fact that I live in the U.S. does not make me personally responsible for the failures of the war on terror, certainly not when I’ve been openly opposed to them, and certainly not when I can’t even vote yet. The fact that I make youtube videos does not make me personally responsible for all the crazy shit that gets put on youtube. And being a brony, or for that matter an internet user in general, certainly doesn’t make me personally responsible for the fact that there is porn on the internet.
tl;dr: give me any real power over the internet or, heck, give me any real power over other people for that matter, and then we’ll talk about how I can fix everything. Until then I’ll settle for flagging shit when I see it.