Elon Musk’s X changed its privacy policy this week to ban users from publishing the real names of people behind anonymous accounts after some users appeared to unmask a pseudonymous cartoonist who drew antisemitic images. The social media platform updated its privacy policy to say people “cannot share … the identity of an anonymous user, such as their name or media depicting them,” without that person’s permission. The company said it was doing so to maintain a safe and secure platform. X users expressed mixed feelings about the change, because the catalyst appeared to be someone involved in antisemitism, but,...