Are There Specific Regulatory Concerns about Dark Pools in Decentralized Finance (DeFi)?

The concept of a traditional 'dark pool' doesn't directly map to DeFi, which prioritizes transparency via public blockchain ledgers. However, large, private transactions or 'whale' activity in DeFi, often executed through aggregators or specialized protocols, can raise similar concerns.

The main regulatory concern is the potential for market manipulation or unequal access to information, especially regarding the on-chain activity that precedes major protocol changes or large liquidations.