The funny thing is that Section 230 was added to _encourage_ moderation as part of the Communications Decency Act. The historical context is that prior to 230,

The funny thing is that Section 230 was added to _encourage_ moderation as part of the Communications Decency Act. The historical context is that prior to 230, imperfect moderation would be used as proof that a service could moderate but chose not to. This created an incentive to architecturally design systems in a way that made moderation impossible (or at least strongly encouraged services to pretend moderation was impossible). So Congress enacted Section 230, so partial moderation wouldn't be turned against you. Kind of funny in this context. But attempts at moderation, even bad ones, are very much in line with the history of the bill. And of course, we're talking about AWS's private right to associate with whom they want, not government action. 230 doesn't really enter into it except as a metaphor of sorts.