Social Evidence Tampering and the Epistemology of Content Moderation

Social media misinformation is widely thought to pose a host of threats to the acquisition of knowledge. One response to these threats is to remove misleading information from social media and to de-platform those who spread it. While content moderation of this sort has been criticized on various grounds—including potential incompatibility with free expression—the epistemic case for the removal of misinformation from social media has received little scrutiny. Here, I provide an overview of some costs and benefits of the removal of misinformation from social media. On the one hand, removing misinformation from social media can promote knowledge acquisition by removing misleading evidence from online social epistemic environments. On the other hand, such removals require the exercise of power over evidence by content moderators. As I argue, such exercises of power can encourage suspicions on the part of social media users and can compromise the force of the evidence possessed by such users. For these reasons, the removal of misinformation from social media poses its own threats to knowledge.