Thinking about section 230, It would mainly kill of any rumors threads and the political forums. But the net positive is less misinformation being spread as sites like Facebook, Twitter, YouTube, and more can be sued for slander and defamation. OAN reach would diminish and good bye Candance Owens and Ben Shapiro.
A section 230 repeal would either have no effect or increase the spread of misinformation on social media sites. The idea that somehow a repeal of liability protections for content and content moderation would do anything to discourage sharing inflammatory or false information isn't based in an understanding of the law or how misinformation spreads on social media. People like Candance Owens and Ben Shapiro will still enjoy liability protections on their speech, while sites like wdwmagic could face lawsuits for Marni's posts. And while I am not a fan of @The Mom's totalitarian moderation (hopefully clear that's said in jest! ) I don't think WDWmagic should face legal consequences for it.