The point here to me is that platforms need to choose to develop good tools to make content moderation effective. It doesn’t happen automatically. And it seems too often the case that people who are able (technically, economically, etc) to build platforms and tools are the least aware of the need for such things.
Instead we rely on other people raising these issues, and for those more directly impacted by the content this might be an intense and emotional thing to do. And this has led to better moderation tools being implemented. But it’s hard work bringing up awareness about issues like this, it takes a lot of energy and risk of aggressive pushbacks, toxic arguments, and worse, … etc. And at the end, when/if better moderation tools are implemented, we all enjoy the fruit of that labour, and some may even wonder what all the fuss was about in the first place.
So, I thank all the people that do this awareness raising work 
and those that accept the need for better tooling and implement it