It would be prudent to let "controversial" subjects stand before the court of public opinion rather than be automatically censored, regardless of how riled up the comments section can get.
Hm, what if it was "anything goes" but buttons to hid things you personally find offensive? If you analysed enough hide-clicks you could perhaps start to softly predict what to hide automatically for that person. By softly I mean blurring it, and not hiding it outright. I actually kind of like the Fb filter allowing quite disturbing material, but blurring it and in effect telling you that, "Hey, you might not want to see this, but it's here if you change your mind." Oftentimes I just scroll past those, because - wow - I really don't need stuff like that in my life, and I'm grown up enough to make that decision for myself. On so select occasions I still look at them, for reasons. But then I at least had a reason! So it's beyond complaining, and I can really only thank myself for looking at it, if I didn't like it after all.