A perfect storm engenders online rudeness, including virtual anonymity and thus a lack of accountability, physical distance and the medium of writing …

With a presidential campaign, health care and the gun control debate in the news these days, one can’t help getting sucked into the flame wars that are Internet comment threads. But psychologists say this addictive form of vitriolic back and forth should be avoided — or simply censored by online media outlets — because it actually damages society and mental health.

Working out solutions to the kinds of hard problems that tend to garner the most comments online requires lengthy discussion and compromise. “The back-and-forth negotiation that goes on in having a conversation with someone you don’t agree with is a skill,” Markman said. And this skill is languishing, both among members of the public and our leaders.