Do you need KYC for dYdX?

Could you elaborate on whether Know Your Customer (KYC) procedures are required for using dYdX? Given the nature of cryptocurrency and the stringent regulations surrounding financial transactions, it's crucial to understand the verification requirements for platforms like dYdX. Does the platform mandate KYC for all users, or is it only for those engaging in certain types of transactions? Additionally, how rigorous is the KYC process? Does it involve thorough identity checks, proof of address, and other documentation? Understanding these details is crucial for users to assess the security and privacy implications of using dYdX.