It was my impression that he intentionally cultivates those aspects of his public persona. That is, if I can't deal with those particular points of personal obnoxiousness, I probably also won't hang credulously on his every word. In that case why would he want to interact with me at all? He's not the only person to employ this strategy. Personally I'm more willing to endure the idiosyncrasies of e.g. RMS.