Why do you troll?

[Veknoid_Outcast]

brendude13 said:

Veknoid_Outcast said:
I see nothing wrong with using irony or sarcasm to highlight others' fanaticism or double standards, or to make, obliquely, a legitimate point. But true trolling, i.e., upsetting others for fun, is the height of selfish, insecure, and counter-productive behavior. It has no place here or on any other community forum.

A lot of posts seem to be misinterpreted as trolling, usually anything with sarcasm or added "sting".

I think those are perfectly fine. Sarcasm and irony are literary devices after all. What bothers me is when users post inflammatory words simply to draw a negative reaction from someone. What is the point other than injury?