The Internet's Greatest Supervillain

The supervillain known as The Troll is now locked up and unable to harm anyone. But there's always one more person succumbing to the allure of internet courage and anonymity, as illustrated by Farley Kitz in The New Yorker.
Web Commenter Man didn't start out bad. He was just an average person who, to his shock, found someone wrong on the internet. He responded. Then he kept arguing with this mysterious enemy. Thus belong a long, dark slide into textual depravity.