It's been talked about on several forums, and the guy has a known problem, and people seem to take time and effort to deliberately bait him, knowing what to do or what to say to get him to pop. Frankly I think that to behave like this - to deliberately set him off is despicable. It isn't funny, it's not bright. Sure - he shouldn't say what he does, but there is no law preventing somebody with Tourettes, for example, having a license. Invariably, the clips available on line neatly ignore the winding up that took place before.
If somebody had a broken leg, would you repeatedly bend it until they eventually sobbed? This is baiting. Most of the locals just talk normally from what I have been told, but others react and prod him into going overboard. Instead of people plastering him over youtube, perhaps they should consider the definition of bullying, because that's what they are!