Risk Assessment of Blockchains - Blockchains with arbitrary content pose higher legal and moral risks for operators compared to those confined to financial transactions [1] - Running a node that cannot selectively delete unacceptable content without functional disruption is riskier than data services with selective deletion capabilities [1] - Nodes discouraging arbitrary content through mechanisms like escalating fees or byte limits are less risky to operate [3] Content Categorization and Legal Implications - Moral and legal categories of arbitrary content vary widely, including CSAM/CP, obscenity, copyrighted material, censored political content, trade secrets, and classified material [2] - Jurisdictions (hundreds) treat these categories differently, with varying enforcement levels [2] - Governmental responses to different content types and across different governments are inconsistent and unpredictable [3]