The Wall Street Journal got tabloidy; the New York Times got snarky and a full-time kvetcher decided to stop complaining. The Twitterati were feeling experimental.
Wall Street Journal editor Alan Murray hilariously lampooned the state of mainstream business journalism in a pithy tweet that married weak sourcing with a ridiculous and sensational headline. Ah, the joys of satire.
The question isn't why Twitter's Biz Stone misspelled an abbreviation for "oxygen," but why he was typing it in the first place. Likely answer: His burning hatred of the English language and its lengthy glory.