When the German chancellor, Olaf Scholz, was asked in an interview about the barrage of insults being directed at him and other German leaders by Elon Musk, the world’s richest man, his reply was: “Don’t feed the troll.” Speaking to the German weekly Stern, Scholz described the criticisms as nothing new. “You have to stay cool,” he said in the interview. “As Social Democrats, we have long been used to the fact that there are rich media…