I would like to see this too. It should be added on to the loli/shota rule under banned content. Quick and simple.
The recent debacle on /mlp/ over ponepaste, and now FA/possibly Derpi has really been eye opening. It somehow devolved into a train of discussion that exposed just how many unironic pedophiles use that board who openly support that shit, with many more being in other corners of the fandom like discord circlejerks and the altboorus.
Most of whom, to absolutely nobodies surprise, are barbiefags
It's one of those groups where if you give an inch, they'll take a mile.