people are straight up calling for murder on that website, it's insane. There's no negotiating. "Let me call for violence on the internet, or I'll go out and actually shoot someone" is nuts. That's not someone you negotiate with, that's a person that belongs into a mental ward. Authority does not need to back down because someone threatens terrorism. And yes before other events are invoked, that goes for all form of violence advocacy no matter from which group.