Your link supports GP's assertion. There is no rubicon to be crossed. Both the letter and the intent of Section 230 is to allow Twitter and Facebook to moderate

Your link supports GP's assertion. There is no rubicon to be crossed. Both the letter and the intent of Section 230 is to allow Twitter and Facebook to moderate however they wish. (Although the fact checks are authored by them, and therefore don't fall under Section 230; Twitter would be liable if they were shown to be defamatory).