Earn Pools also play a critical role in maintaining stability:
If the stable-leverage pair becomes unstable due to excessive minting of stables or insufficient xTokens, stables in the Earn Pool are redeemed for reserve assets at their Net Asset Value (NAV).
In stability mode, this operates like automatically buying ETH (or the reserve asset) at market price without slippage.
Otherwise, it enables farming of real, unstable yields using stablecoins.