Marcio Jose Sanchez/Associated Press Tesla CEO Elon Musk said he will try to be less combative on Twitter in an interview with Bloomberg. Musk said he had believed he could "attack" people who addressed negative tweets toward him, so long as they attacked him first. But he said he should probably decline to respond to negative tweets more often. Tesla CEO Elon Musk said he will try to be less combative on Twitter in an interview with Bloomberg. "I have made the mistaken assumption—and I will attempt to be better at this—of thinking that because somebody is on Twitter and is attacking me that it is open season.