Whats the point of trolling?

Does your life feels so bad you want to inflict harm on random internet denizens? Or were you just born an asshole?

/prog/ made what i am. Revealing another facet of me?
I'm an incredibly abrasive personality it seems.
If i try to use something in my style. My avatar, signature and tripcodes it all comes to shitstorms and "IHBT".
 When i try to argue my points it comes of as unnatural and forced(i read some past posts to analyze this occurring and they all end up in accussations of mental instability/aspergers or plainly label me as troll). This leads to people making insults and threats which drive topics to flame wars, making the reputation of "trolling' somehow justified(and mocking me in the process).
I don't actually want to be a troll,but thats what you want me to be. ;_;