Peoples motives vary greatly in being here, and I am sure there are quite a few......the sociology and psychology of internet forums is quite interesting. I look at it a lot like driving in a car, most act pretty different online when they can assume psuedoidentities.......
here is something that may answer your question Mark that I found intereting a while back:
Taken from:
http://en.wikipedia.org/wiki/Internet_troll
"Trolls can be existing members of a community that rarely post and often contribute no useful information to the thread, but instead make argumentative posts in an attempt to discredit another person, more often than not based on what they thought was said rather than what was actually said by the other person, concentrating almost exclusively on facts irrelevant to the point of the conversation, with the intent of provoking a reaction from others. The key element under attack by a troll is the forum or group's recognized and agreed upon power structure. To this extent, a troll does not necessarily have to make malicious or incorrect comments. For example, a person with political point of view A who approaches a forum frequented by people with political point of view B, may be considered a troll, even if no lies or attacks are made.
A person who retaliates (using whatever means) as a result of a misunderstanding (or as a way of rebelling against the overzealous application of rules) is not a troll. A troll is a person who approaches a board with the specific intention of stirring things up, either with no particular motive or provocation in mind, other than to be purely destructive or if the motive or provocation is against the ethos of the board."
I would imagine that the mods have a hard time telling the difference between someone having a bad day, being misunderstood and acting out, or causing deliberate trouble......I can imagine they run into all kinds of characters on here. Tough job the more I think about it.