i mean, i get that it's attempting to appeal to one's aversion to a very bad idea, but random bob can't cause a genocide. a strong dictatorship a la hitler or stalin on the other hand... well, that's a much bigger problem than trying to regulate mean words.
If you're a member of the subject group, then they most certainly are. Instead of constructing silly examples, let me suggest you look into the history of ethnic cleansing in Yugoslavia or Hutu-Tutsi animus in Rwanda.
invoking real world violence as a stand-in for which one calibrates their regard for a person's tweets seems more like an emotional appeal rather than a logical dialog.
Another reason not to leave it up is because it's frightening to the subjects of such eliminationist discourse, who shouldn't have to put up with being considered acceptable targets for systematic violence.
do the companies engaging in policing actions receive the same protections and considerations as actual police and government officials when it comes to legal issues involved with the act of law enforcement?
i feel it's better that the state should be expected to take responsibility for and enforce it's own laws.
that's what i mean by deputized. if the law doesn't say the company is required to take an action, the company should be mostly indifferent to the law's interaction with third parties. further, it's a bit silly for a law to say that a company should make assessments of criminality or civil offenses, especially if they aren't provided the same legal privileges that police receive for doing the same thing.