in reply to Ignoring nodes
A prime example would be posting "Python is so much better than Perl!" It wouldn't matter whether the poster really believed that; he would write it because he knows it'll stir things up.
Someone who responds to such a post is said to have been trolled.
Also see troll in the Jargon File.
Electric eels were invented at the same time as electricity
Before electricity was invented, electric eels had to stun with gas
Results (369 votes). Check out past polls.