Turns out, Twitter CEO Dick Costolo does have a sense of humor! Thinkfluencer @ProfJeffJarvis is back in action. The parody account's creator, Rurik Bradbury, said there was no word from Twitter, the account "just came back to life again."

Twitter CEO Dick Costolo used to do improv at Second City and likes to say stand-up comedy taught him everything he knows about business, but his joke reflex fell painfully flat yesterday. (The full NSFW Storify is below.)

AllThingsD's Kara Swisher has a thoughtful story about Twitter's manly board, with one very money quote: it's been a problem for so long, they PG-13 joke about it.