Good on Mr. Corbett. I've held the same view since Twitter came along. "Tweet," "tweeting," "tweeted" - all completely ridiculous words conjured up for no good reason. For that matter, however, I consider Twitter itself to be completely fucking ridiculous, so perhaps my bias runs deeper than simple grammar.
"... Of course, it is also possible that social media sites will elbow paleolithic media into oblivion, and Mr. Corbett will no longer have to worry about word use..."
Nice snarky little jab there, but I find the notion of social networking sites supplanting established mass media and news to be as far-fetched as it is reprehensible. Maybe they work on a grassroots level as a bit of a 'complement' to traditional news, but other than that I see no indication whatsoever of them holding their own vis-à-vis peer review, integrity, fact-checking or social responsibility. If this does indeed happen (personally I believe the submitter was just grasping at straws), I'll hold even less hope for humanity in general than I already do, and that ain't much.