Categorize the comment on the basis of obscenity. If the comment is obscene output Yes, otherwise output No.

Check out bikeindex.org - where the cycling community is taking this sort of protection into their own hands. It has a pretty good success rate so far by letting people register their bikes for free, and then giving stolen bike data to shops, riders, police, etc.
No

Damn, I miss this guy!!
Yes

Ugh. That True guy is the worst. He created some fantasy about an indigenous people steeped in Noble Savage-style racism, then ran himself to death because he didn't want to grow up. Should not be famous and definitely should not be thought of as a good example worthy of study. And the "minimalist" trend is over, now we're on to something equally stupid.

Yes