"Almost every social-media platform offers its users an option to privatize their account—a way for people to control who engages with their content, often to avoid the judgment, schadenfreude, bullying, and snark that are ubiquitous online. Many of these options aren’t terribly helpful, though. Facebook seems to constantly adjust its privacy settings, and it can be difficult to tell what information your friends have access to. On TikTok, unless you want a fully private account, you have to select who can see each and every video before you post. And Twitter’s protected-Tweets feature isn’t ideal if you have a large following; the “Retweet” button may be disabled, but your followers can still screenshot and share what you post."