I should point out that we didn't tolerate this level of liability protection when Hollywood was involved. The safe harbor for copyright infringement has a notice-and-takedown requirement that CDA 230 doesn't have. If someone publishes my home address and an incitement to violence on a web forum, the platform doesn't have to do anything in order to maintain their safe harbor. However, if that same person were to copy a photo I took of my house in order to demonstrate where to go, then they have to accept a DMCA 512 takedown request or I can sue them for damages. (Assuming I jumped through all the necessary copyright hoops in order to do so.)