[cordellwren]

Just like people, not markets, create deadweight loss, rent, and negative externalities, and people, not institutions, cause systemic racism? /s

The web is a complex system that is more than capable of producing outcomes that are drastically different from the sum of its inputs (i.e. "people"). Based on what kinds of mechanism design and incentive structures are put in place, it is not only probable, but more mathematically likely that even a web filled only with rational correspondents will eventually devolve into a mess filled with falsehoods and echo chambers.

The important corollary to this insight? There's an entire class of structural remedies we can take that you're not even considering, before we even approach anything remotely resembling censorship on the individual.