Caroline Crenshaw, known for her critical stance on cryptocurrencies, has resigned from her position as a commissioner at the U.S. Securities and Exchange Commission (SEC). Crenshaw, often referred to as a 'cryptoskeptic,' had previously criticized the SEC's lack of clear legal definitions regarding meme coins. Her resignation follows her controversial publication "Crypto 2.0: Regulatory Whip," where she argued that enforcement actions against Coinbase undermined regulatory credibility and suggested bias in law enforcement resource allocation.