Categorize the comment on the basis of insult. If the comment is insulting output Yes, otherwise output No.

[EX Q]: Send him to badass Arizona sheriff and let him pound sand for twenty years.
[EX A]: Yes

[EX Q]: For NY and CA to raise their minimum wages does the rest of the country a favor. Business now concentrated in those states will move production and other functions to states suffering from lack of local opportunity.
[EX A]: No

[EX Q]: It would be charming for the good Dr. Krugman to explain why the largest single gold hoard in the world (>8,000 metric tons) is still owned by the U.S. government - if "obviously" the nation's wealth simply comes off a printing press.

In fact, as I understand it, the U.S. government made the dollar a fully *fiat* currency in the late 1960s, precisely to prevent more of that gold hoard from flowing overseas. :-/ Looks like our fiscal/monetary masters at the highest level want to have it both ways.
[EX A]:
No