What is a troll?
A crazy haired being that lives under a bridge. Or someone that tries to make you mad over the Internet on purpose.
A troll is somebody who uses the internet to promote arguments and abusive conversations in the online community. This person raises a provocative topic just to make bad comments on those who participate. Read http://netforbeginners.about.com/od/weirdwebculture/f/what-is-an-internet-troll.htm.
Well. your name is asktrollers, shouldnt you know?.