- Musk drew criticism for a tweet Sunday targeting Anthony Fauci, the outgoing U.S. chief medical advisor, while mocking the use of pronouns to refer to a person’s gender.Tech billionaire Elon Musk was met with a mixture of boos and cheers from an audience at a Dave Chappelle comedy show Sunday night.In a video shared on Twitter, the crowd can be heard jeering Musk, whose recent purchase of the social media platform has attracted criticism due to concerns about mass layoffs and looser content moderation.The owner of the video that was posted on Twitter appears to have had their account suspended or has taken it down, with a message reading: "This Tweet is from an account that no longer exists."The tweet added fuel to a wave of online abuse and conspiracy theories directed at the veteran immunologist."