At one point in the documentary, the main character went on a rant about how he was glad his father was dead after complaining that his father disliked his video games and music. At that point, I couldn't enjoy the film at all anymore. If that was what he meant and is to be taken at face value, then it was either a documentary about a sociopath. If that wasn't the case? Then the editor left in exactly enough of a non sequitur to misrepresent someone into something terrible.
Either way, I couldn't enjoy the film afterward.