"The spread of those anti-government narratives have an impact beyond people's computer screens and phones Skrepnek cited the case last year when B.C. wildfire fighters had to be pulled out from parts of B.C.'s Shuswap region following threats of violence and assault."
I know nothing about the tech of such enforcement, but I have heard that certain types of posts have been traced to troll farms: that suggests it's not an entirely intractable problem.