I think I can explain.... This guy suffers from the delusion that he is "superior" to most other people, thats why when he addresses others he does so from the perspective of why he thinks they are behaving a certain way because he "knows" whats going on in their mind.
To this guy he thinks he can read all people even over an internet message board. Even when obvious faults are pointed out, he resorts to an arrogant smug method of response, even with self admitted NO experience with oxy or the addiction, he quickly assures that "he knows" the road will be hard, and has prepared himself for it.
It's the typical mindset of an immature 17 year old who thinks he knows everything and can handle whatever, but this guy takes it a step further with his blatant arrogance of believing he can understand every nuance of the human experience.. in a way that makes him matter to others..... I think the guy just needs some REAL life Experience, to wake himself up to the realities of this world instead of the fantasy he "thinks" that it is.... as far as the trolling, I'm willing to bet that he doesn't even consider this trolling in his own mind, to him it's just setting things "right" with the people that don't agree with his every statement as his mind and ago assures him that anyone with common sense "will do" so to him obviously the problem is with all of us, not him....