In the late 1980s, Internet users adopted the word “troll” to denote someone who intentionally disrupts online communities. Early trolling was relatively innocuous, taking place inside of small, single-topic Usenet groups. The trolls employed what the M.I.T. professor Judith Donath calls a “pseudo-naïve” tactic, asking stupid questions and seeing who would rise to the bait. The game was to find out who would see through this stereotypical newbie behavior, and who would fall for it.
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Sherrod DeGrippo, a 28-year-old Atlanta native who goes by the name Girlvinyl, runs Encyclopedia Dramatica, the online troll archive.
I'm not sure I'd call ED "the online troll archive", but the rest of the article is pretty interesting.