In Internet slang, a troll is someone who posts inflammatory,[2] extraneous, or off-topic messages in an online community, such as an online discussion forum, chat room, or blog, with the primary intent of provoking readers into an emotional response[3] or of otherwise disrupting normal on-topic discussion.
http://en.wikipedia.org/wiki/Troll_%28Internet%29
examples
viewtopic.php?f=36&t=35 (Aug 07 revival)
viewtopic.php?f=20&t=475 (last previous post july 07)
viewtopic.php?f=58&t=10505&p=293624#p293624
viewtopic.php?f=36&t=25279&st=0&sk=t&sd=a (current thread 4 posts)