I remember playing with Asmon in a guild called Overdose, Alliance Thrall, back in TBC. He mainly PvP'd so we didn't really cross paths much, since I mainly raided. From my experiences with him, way before he ever streamed, was that his angry "persona" is who he really is. It's the "non-persona" person that is the actual persona here.
He's the same little kid he was a dozen years ago, he just happens to be somewhat intelligent. I just find it funny that people eat that shit up and actually believe that he's playing a part when he's not. Not that I care, I don't play nor watch WoW