The most interesting part to me started here:

Section 230 Protects Intermediaries That Host Speech: Section 230 enables services to host the content of other speakers—from writing, to videos, to pictures, to code that others write or upload—without those services generally having to screen or review that content before being published. Without this partial immunity, all of the intermediaries who help the speech of millions and billions of users reach their audiences would face unworkable content moderation requirements that inevitably lead to large scale censorship