Some news outlets have decided to quit X, formerly known as Twitter, since the election of Donald Trump, whose campaign was financed and supported by X's owner Elon Musk. Sweden's newspaper of record, Dagens Nyheter, cited a "harsh and extreme" environment on the website. Since buying Twitter two years ago, Elon Musk has drastically reduced content moderation. FRANCE 24’s Peter O’Brien interviews David Chavalarias, research director at the CNRS and author of the book Toxic Data.