[themacguffinman]

Doesn't matter who's "actually responsible" for hateful and toxic speech if no one - neither users or advertisers - is willing to patronize your business for hosting that speech. Would you be willing to pay to use 4chan? If you ran another business, would you advertise on there? So ask yourself: if you owned a digital platform where users/advertisers were fleeing left & right because they constantly see vile content that they don't want to see or associate with, would you be content to wash your hands of moderation and impotently say "well actually the FBI/NSA is responsible for this, not me" as your platform dies around you?