Shock sites always had trouble with the law, which is why most of them have shut down by now and most social media sites remove it. Watching/consuming it is one thing, publicly and openly sharing/promoting it without effectively restricting access to minors will always bring legal issues and legal attacks… And even when the legal charges are fought successfully, it’s still a major pain in the ass most people don’t want to deal with… And then you also have to find ISP’s and hosters who are willing to host this kind of material.