Cheering Loutishness

Why do people cheer the loutish intensity?  Why is the angry and insulting player encouraged?  Perhaps they decided on a favorite and then permit whatever he will do.  Maybe they want to see this performance and want it performed just this way.  Maybe they find it more to their liking than civility.  What about the cycle of intensity and its encouragement provide and provoke such applause?  Why do his insults sound so pleasing?  Is the madness in the crowd, or in their expectation that this is how they must be?