According to Nic Carter, crypto-related activities encompass roles such as crypto-asset custodians, stablecoin reserve maintainers, issuers of crypto and digital assets, market makers, and exchange or redemption agents. These activities directly impact trading dynamics by influencing liquidity, asset availability, and market stability. For traders, understanding the roles and operations of these entities can provide insights into market movements and potential opportunities or risks, as cited by Nic Carter on March 28, 2025, via Twitter.