Cardano holders exchanged 14.4 million ADA for 847000 USDA, resulting in a loss of 6.05 million USD

According to Zachxbt monitoring, a Cardano holder exchanged 14.4 million ADAs (worth $6.9 million) for 847000 USDAs, resulting in a loss of $6.05 million due to insufficient liquidity. These funds were idle for about 5 years before this operation. （Onchain Lens）