This pool acts as a savings account denominated in USD. Yield comes from trading fees generated on gTrade.
This pool is rated C primarily because DAI is backed by USDC, a centralized stablecoin, and the pool serves as the counterparty for traders' P&L on gTrade.
Withdrawing gDAI requires entering an exit queue that lasts between 1-3 epochs (each epoch is 72 hours). However, users may exit instantly by swapping on a DEX at the current market rates.