[brnt]

The problem is that people understand things differently. What is a valuable lesson for you, can be an inspiration for others. This is actually quite well researched so you can't just keep such violent materials accessible to all and not know you are helping some radicalise.

Why not store such things in archives accessible to researchers with a articulated and plausible research questions?

[raxxorraxor]

I would believe that this research is as sound as research for violence in movies or games.

This is different, these were events in real life. But the "studies" are certainly not conclusive. It is the "stochastic terrorism" argument, which is trivial and very likely wrong.

And it can serve as a (bad) argument to remove any and all content. There is not place for it in democracies.

[squigz]

Can you link to that research?