Dave Portnoy, founder of Barstool Sports, expressed regret after selling $3 million worth of XRP at $2.40 each, just before the token's price surged to over $3.60. This missed opportunity for a 50% profit came as the GENIUS Act was passed, boosting sentiment for regulated cross-border payment tokens. Portnoy's decision has sparked discussions on emotional trading and panic selling within the crypto market, highlighting the challenges investors face in timing their trades amid volatile market conditions.