The point is to annoy them that much, they get fed up of "timewasters" and (hopefully) delete their profiles.
Just last week had a discussion with one offering bareback, instead of trolling her, telling her it puts her health at high risk, claimed she was unaware of that and said she would stop offering it. She's took it off her list of likes, but whether she still offers it is another story. Tried to discuss this with others and obviously they didn't take kindly to it. So, using another profile i decided to troll them.
Barebackers (and the idiots that go to them) I see as a problem, not just for punting but for the public in general; some offer bb because they're ignorant of the health risks, increasing the risk of sti infection in the general populace, while others do it to get pregnant and that burdens the taxpayer, because WGs in most circumstances doesn't know who the father is and therefore rely on state handouts to bring up their kids.