Tech policy experts are already pushing back on these ideas, arguing that Musk is underestimating the need for content moderation and warning that forcing all users to authenticate their identities will squelch vital kinds of anonymous or pseudonymous speech.

I disagree. First, it's one thing to make an author prove that he or she is a unique human being - assuming that's technically possible - and forcing that person to write under his or her real name. I would, however require Twitter to respond to subpoenas where libel is credibly alleged. Anonymity is not a legitimate bar to a libel action.

Second, Section 230 is incompatible with moderation. If there is to be content moderation, then the operator of the platform should be treated as a publisher, with all the attendant rights and burdens. If we don't want Twitter to be subject to a publisher's liability, we should not expect it to exercise a publisher's judgment.