I figured Foo was the best place to put this.
Before voting, there is a very comprehensive definition, history and analysis of trolling here: http://en.wikipedia.org/wiki/Internet_troll
For the purposes of this thread, let's concentrate on the 'one-shot' troll:
"One-shot troll messages are intended to be disruptive, and tend to be very obvious to ensure that they will receive annoyed replies." In my own opinion, a good one-shot troll makes an OP, and never has to respond to any posts as the war he/she started rages on with a life of it's own.
My nominee for this category would be SinCityCycler - he's proven to be a one-shot master.