> As these companies voluntarily embrace more censorship, they are calling into question their status as "service providers" since they are effectively operating as publishers; i.e., not protected under 230.

230 was expressly adopted to let service providers (and users!) of interactive computer services take actions that would otherwise make them publishers without the liability that goes with that, with regard to content that is created by someone else. That's it's whole purpose. Key operative text: “No provider or user of an interactive computer service shall be treated as the publisher or speaker of any information provided by another information content provider” and ”No provider or user of an interactive computer service shall be held liable on account of [...] any action voluntarily taken in good faith to restrict access to or availability of material that the provider or user considers to be obscene, lewd, lascivious, filthy, excessively violent, harassing, or otherwise objectionable, whether or not such material is constitutionally protected”

https://www.law.cornell.edu/uscode/text/47/230#