The rules are there for protection and to try and ferret out the drive bys taking quick shots...trolling is a strange but very disciptive word....It is as if by their visit they have absolved and strengthened their position.......Positioning with whom in some great cosmic scheme for a better "what"?...Just some question....
People who 'troll' are odd and a particular to the internet as anonymity allows some to behave online in ways they woudn't in real life. I know one chap who was a theist who trolled atheist forums and as a result of the responses became an atheist.
They just do it for the luls. Sometimes the gratification is merely that people take them seriously and sometimes it's pissing people off. I don't mind so much trolls that are funny, but those are the rare unicorn trolls. Ultimately, if the topic they post results in a good discussion, then it's doesn't matter at all to me that they trolled.