After Mr. Musk bought the platform, he immediately fired the teams responsible for combating disinformation. It then implemented a “blanket amnesty” for thousands of accounts that had been permanently banned, including those of neo-Nazis, conspiracy theorist Alex Jones and far-right activist Tommy Robinson. A few months later, it changed the verification system to allow users to pay for a blue verification checkmark, allowing followers to benefit from greater visibility, while making it more difficult to verify the accounts of real personalities public.