Jacko has been here long enough that you should care what he has to say. He may be a Yankees fan, and therefore one of the most detestable human beings on the planet (behind only vegans and whoever cancelled Firefly), but generally his baseball knowledge is insightful and based on logical extrapolation of statistics and observation. Unless, of course, it concerns the Red Sox or Yankees.
My point being, don't be a dick to him unless you have to. We all hate everything he stands for and believes in, and hope that one day he will either convert to the Red Sox side of things, or suffer as his fields lay fallow for a dozen generations and his livestock are stricken with plague, but hey, give him a break.
Besides, he's right about Napoli. The guy mashes, he's not lucky, he's just powerful.