"Trolling: Who does it and why" - BBC report.

The awesome yet sometimes painful prospects of the internet means you can never really judge the troll behind the screen. This is interesting to me, is there a social profile for "Trolls" or is it just random people?

You know, a business man could be a troll.
A town mayor could be a troll.
Nick Clegg could have a trolling alliance with David Cameron, and even Obama could get on the scene.

Funnily enough, Obama's lion king exploits could be considered trolling right? Provocation of people that oppose his views? Everyone has been involved in trolling when they use the internet, but I'm mainly interested in the obsessive, prolific trolls most forum boards have, yet have the know how to work within the rules.