I found this clip of Hockey Night in Canada with Don Cherry talking about the Chris Simon stepping on Jarkko Ruutu incident (see video below). And I have to kind of agree with him. These guys (players like Ruutu who do cheap/dirty/unsportsmanlike things) don't have any fear of being taken to task for what they do because of the instigator rule. If the instigator rule wasn't there I think you wouldn't see guys like Ruutu doing much of their stuff that they usually do, because then enforcers like Chris Simon could go after them and pound in their face, which Simon should have done anyways rather than trying to step/kick Ruutu.
What do you think?