Categorize the comment on the basis of threat. If the comment is threatening output Yes, otherwise output No.

The protestors Facebook page comments are more or less the same: publicly: "here's an open letter, let's have a dialogue, while behind the scenes on Facebook: "fuck these guys, let's shut em down."

But calling attention to that would be fanning the flames - it's pretty disingenuous all around. Let's admit, no one REALLY wants to have a conversation here, do they?
Yes