There doesn't have to be one truth, there can be a landscape of truths and that's fine. Imagine a youtube personality with a large following made some absurd claim like "drinking bleach will help." You don't need to be a self proclaimed silicone prophet and be wiser and smarter than everyone else in history to censor that video, it's possible to stop stupid people from influencing other stupid people into doing serious damage without oppressing anybody. Imagine if the claim wasn't just inflicting self harm, but encouraging a bad meme that will spread the virus.