You know, it was hard for MJ to trust anyone. He hired somebody they turn around and stab him in the back. He hires somebody else, same business. He's had so many people betray him he doesn't know who to trust. Look at some of us now, we don't know who to trust. They all seem to be shady. But it seems to be a trend from decades ago. And as cash flow problems increase, and pressure for the catalogue etc. maybe those who extended help also held him at ransom for something. In other words, he couldn't very well completely extricate himself from some people because of the financial hold they may have had over him.
And who knows, maybe that is the exact reason that MJ couldn't sleep after a while. He was so stressed, so pressured, so troubled. Not to mention he was embarking on a venture that his body, historically, can barely handle.
Then you've got the Dr. who have the nerve to tell him that propofol is safe. (although technically, if he is getting a 25mg per night to sleep, it is, technically, harmless). But the fact is the responsible thing to do is administer propofol in a hospital setting. If the responsible party did their job at restricting propofol's access, then it wouldn't even be an issue.
It isn't as cut and dry. And that is why it is important to shake out what was going on behind the scenes. Who was threatening, who was holding who ransom, if so? Was there something more to all of this? And of course, who is the smarty pants that administered propofol in an unsafe setting?
No I don't think he was an addict. An addict to what sleeping pills? He had a dependence to pain killers while he was experiencing pain, and perhaps continued to experience it on and off. But sedatives are a different class and taken for a different purpose. Unless you want to call him an addict all across the board because it is so much simplier than uncovering some real conspiracy?