Just a note, Kos himself got paid $3K a month by the Howard Dean campaign for at least 4 months, along with getting a bunch of other goodies. Recently JetBlue sponsored some kind of Kos event. (See http://www.slate.com/id/2112314 - published in 2005 as a source on Kos.)
The word "troll" actually goes way back. The artform is actually a bit more dignified than people think now. The first "troll" was supposedly Jonathon Swift with his "Modest Proposal" pamphlet (the title was posthumous by several hundred years, of course). The basic idea was: You start off by being reasonable, getting people to believe you, and then become more and more extreme until the point of ridiculousness.
Now, troll means: Someone who goes and makes obvious, inflammatory statements trying to start arguments.
Often, "Troll" as used means: Someone who disagrees with the general consensus. That's a dangerous definition.
Kos seems to think that a paid political agitator (another old trade) is also a "troll" when on the internet. Not so.
