bsb2007-You make a good and pleasantly brief point. Attacking someone over what is clearly labeled as an opinion and not fact puzzles me. It reminds me of Don Quixote and his windmills. PDS posters please note that this is my opinion, not fact!
While on the possible DSM-IV-TR diagnoses (please note I am presenting my unique, stylized version, not the real DSM so no cut and paste please, cc is something I have fun with, not something I want to spend time researching data for), I would consider a narcissistic personality disorder (benign indifference to the feelings of others, rage over perception of being challenged) or perhaps frontal lobe damage to the brain (resulting in reduced control over emotional centers of the brain- e.g. long rants and abusive comments)!