Recently looking at the APYs of several yield aggregators, the numbers all look pretty good, but honestly, that string of returns didn't fall from the sky. When I clicked in to check the contracts and fund flows, I found that some of them are actually just transferring your money to other protocols, borrowing and collateralizing again. The path is long, and each step adds another counterparty. If one of the pools in the middle has an issue someday, no matter how smooth the aggregator front end is, it won't help.

Some people keep an eye on large on-chain transfers and hot/cold wallets of exchanges, shouting "smart money is coming" whenever there's movement. But now when I see that, I stay calm... Arbitrage, rebalancing, or fund aggregation could all be happening, and it has nothing to do with my casual yield farming. Anyway, when I work with aggregators now: I start with small amounts, check permissions and upgradeability, and avoid granting unlimited approvals whenever possible. Honestly, the more exaggerated the APY, the more anxious I get—I really don't want to find my lunchbox taken away when I least expect it.