There's already pornographic content on Twitter. Again, if they allow people on who rail against the United States, rail against conservatives, then why are they shutting down a pro U.S. former president? They were given the Section 230 exemption because they argued they were a platform, didn't editorialize like newspapers. They don't HAVE to have that exemption and Congress has the right to take it from them. Then they can experience what the NY Times and others know too well, the right to be sued for harming others.