Douglass Mackey is alleged to be one of the many anonymous Twitter users who made the 2016 election so different, so memorable, and so important. Like other anonymous internet memesmiths (anons), Mackey had no external reason that anyone should care what he said. He held no office. He had no byline at an elite publication. He had no vast pool of wealth that conferred legitimacy, deserved or undeserved, on what he had to say. Mackey’s notability, like that of Bronze Age Pervert or Libs of TikTok, came exclusively from what he had to say, and that people found it funny...