I left Twitter a year ago, when the right-wing billionaire Elon Musk announced he was buying the company. A few months ago, I rejoined, a decision I now regret. There was never any question that Musk's erratic, pernicious world-view would drag the service deeper in the mire — and it was a politically poisonous apparatus from the start. What caused me to quit again was Twitter's treatment of NPR. A vaunted news organization that receives about one percent of its funding from the government was labeled "state-affiliated media" on Twitter, alongside the likes of Russia Today. The designation was later changed to "government-funded," which is still wrong. In response, John Lansing, NPR's president, has announced that the institution will no longer be posting on Twitter. Lansing writes: "We are not putting our journalism on platforms that have demonstrated an interest in undermining our credibility and the public’s understanding of our editorial independence … Actions by Twitter or other social media companies to tarnish the independence of any public media institution are exceptionally harmful and set a dangerous precedent."