While I agree with Section 230 in theory, it is often only used in practice to protect megacorps. For example, many Lemmy instances started getting spammed by CSAM after the Reddit API migration. It was very clearly some angry redditors who were trying to shut down instances, to try and keep people on Reddit. But individual server owners were legitimately concerned that they could be held liable for the CSAM existing on their servers, even if they were not the ones who uploaded it. The concern was that Section 230 would be thrown out the window if the instance owners were just lone devs and not massive megacorps. Especially since federation caused content to be cached whenever a user scrolled past another instance’s posts. So even if they moderated their own server’s content heavily (which wasn’t even possible with the mod tools that existed at the time), then there was still the risk that they’d end up cacheing CSAM from other instances. It led to a lot of instances moving from federation blacklists to whitelists instead. Basically, default to not federating with an instance, unless that instance owner takes the time to jump through some hoops and promises to moderate their own shit.