This misses my point entirely. I'm not commenting on whether youtube recommendations are stale or not. I'm pointing out that it's contradictory to complain both that the recommendations are too stale and that people discover offensive things.
My point is that it's not. Mostly stale doesn't mean there is never something outside the norm. As such, I do not believe I am missing your point, but that you are willfully and incorrectly assuming that everything is always an absolute.