Between bad actors taking advantage of DMCA takedowns and brigading mobs, it seems that automated (or semi-automated) moderating is absolutely a no-go at scale. Incidentally, it's also why these networks (YouTube/Facebook/Twitter/etc.) can achieve such a massive scale with basically zero human moderation (i.e. cheaply). Remember when we had forums and there were a few unsung heroes that kept our communities clean and tidy(-ish)? Even here, I'm pretty sure @dang is basically reading HN and cleaning it up all day.
Doing this at scale with semi-automated systems is quite literally impossible but until the courts start sanctioning social networks for their ad-hoc censorship (if this is even enforceable), we are sadly unlikely to see a change.
Doing this at scale with semi-automated systems is quite literally impossible but until the courts start sanctioning social networks for their ad-hoc censorship (if this is even enforceable), we are sadly unlikely to see a change.