Ah, CNN... I and others I know generally avoid them as well as FOX and other 'big name' news networks... I find it rather sad that The Daily Show has actually become one of the most reliable sources of news. But at least we get to be in a good mood.
As for the intellect of commenters... well, unfortunately, people love to insert their foot into their mouth online at any opportunity where it's easy to post something. The same kind of things can be said of YouTube videos and their comments, as well- people will comment without even bothering to look at the descriptions, or otherwise only manage a partial attempt at rational thought before posting something. I figure I've been guilty of this as well, though, at times. I believe another webcomic had a lovely strip with an 'equation' for internet stupidity years ago..
"Dropping a warship on me is cheating...take it back!"
"Having left his homeland, he never yields, never retreats, and never regrets. He faces forward and never looks back! He's manly! He's tenacious! Kamina of Team Gurren is here to take you on. Lets go!"