it wasn't just the porn though. japanese also created a bunch of very violent content too and funnily most people and parents were not even aware of it. when i was just a little kid watching dragon ball z, tekkaman blade and rurouni kenshin in the late 90's and seeing people getting their limbs torn off and blood all over the place it was pretty shocking to me. the amount of blood and gore in these anime was off the charts and this is what a bunch of children were watching on tv and it wasn't till the mid-2000's that this content started being censored.
Pirate