I was originally monkey shakespearing ~3KB how any exposure of human skin on social media eventually leads to "that", then realized most of them don't matter. That cultural incompatibility problem only surfaces if you tried to maintain a globally unified social media.
Yes, Japanese users love to jump around NSFW borderlines, dominate social network mediascape with risque contents, hates clarifying standards, opposes that idea of harm mentioned, and rapidly develops political gadgets to support tightly PDCA'd and manually fabricated data if in any way pressured towards obsolescence. For any amount of exposure of human skin, humanlike contours or messaging, Japanese users come up with ways to sexualize that and digress fast into the depth. And Japanese content strive and dominate with unparalleled productivity, relentlessly pushing down that borderline.
It's also just Japanese.
Really, frankly, I don't think it has to be any way softened or sugarcoat. None of even CJKV guys except J show this behavior. Only Japanese and terminally Japan-influenced people do that. There's no French Battalion of Risque Artists Without Ethics that obliterates Mastodon, but Japanese content creators rapidly self-organize into one. There's an all time global YouTube Superchat amount statistics[1] kept by a Korean company, and it's, like that.
And while at it, the globally offending Japanese users don't benefit a lot from social media platforms being a planet scale unitary tower of Babel, other than that they're given a free pass to go anywhere and mess up stuffs randomly. So the rest of the world is just self inflicting harm by help spreading those locally-relevant globally-sketchy contents and influences one-way globally. I'm almost feeling sorry for a lot of what are locally colloquially known as "impression zombies", Sub-Saharan African/Middle Eastern/Indian subcontinent spammers trying to take advantage of Twitter viewcount payout program only to be hopelessly confused and devastated by Japanese content impossible to blend into or even understand, like kittens thrown into a mirror maze.
So, if the world don't want to play the game of dealing unbeatably cheap, high quality, and ethically incompatible Japanese content, the solution should be to completely cut it off. Just split the network, its operations, ethical standards, all into separate entities such as US, Global, and JP. Like laptop keyboards. That shouldn't be a wrong or unjust option.
It should be that easy.
1: https://playboard.co/en/youtube-ranking/most-superchatted-al...
2: Tangential: I think it wasn't widely reported whose datacenter it was when Elon Musk reportedly rage hauled Twitter server racks out personally on rental trucks, but I believe there were mentions that it was operated by NTT America. NTT of course stands for Nippon Telegraph and Telephone. So he couldn't handle Japanese company in custody of Twitter. lol.