At the risk of drumming up unneeded controversy, it reminds me of when Marine Le Pen in France tweeted graphic images from ISIS actions as a rallying cry against them, only to be charged by the state with circulating violent content inciting terrorism ( https://www.theguardian.com/world/2018/mar/01/marine-le-pen-... ). Without proper application of context and judgment, a terrorist spreading propaganda and an anti-terrorist illustrating the terrorist's propaganda would be seen as the same sort of thing.
Of course, there's no simple solution -- we wouldn't want a world in which someone could get out of responsibility for spreading needlessly graphic content just by saying "oh I was just spreading it for educational purposes!".
Can automated processes ever hope to achieve the nuance we need in our societies?