Just to point out… 9/11 is close to 20 years ago now.. society has marched forward quite a bit since then. While that date as a cutoff point is fairly arbitrary there has been a substantial and alarming rise to extremist right violence I’m the last 10 years or so and that can’t just be swept under a rug
That date is not arbitrary. It is selected to optimize the metric.
Even if it were true and even if you didn't set the boundary at "9/11", which is a helluva point in time to stop counting, I'm not sure how that's relevant. Your original post is the classic "yes censorship is bad, but [insert apocalyptic strawman]" style used elsewhere on this thread but more broadly in media to justify a technological crackdown on people saying things they don't like.