If you want to keep your blood pressure under control, better to skip the comment sections on stories and opinion columns on most newspaper Web sites.
Comments posted on personal blogs (even this friendly little one) certainly can turn rude, crude and mean-spirited, too, but nothing, it seems, brings out the venom like a regular news story or an op-ed piece. (The few times I've been tempted to see how readers are reacting to something my favorite political writers have written, I end up getting depressed.)
One topic guaranteed to ignite angry, suspicious, resentful, spiteful types is an article about problems faced in the arts world. Just the mere reporting of an orchestra struggling with budget woes, for example, is blood in the water to the anti-cultural sharks in any community.