Even if we broadly agree that this stuff shouldn't be online, we don't necessarily agree whether something fits into one of these categories.
This is true even in categories with the brightest lines, like child sex abuse material:
https://www.theguardian.com/technology/2016/sep/09/facebook-reinstates-napalm-girl-photo
And the other categories are far blurrier, like doxing:
https://www.kenklippenstein.com/p/trump-camp-worked-with-musks-x-to
13/