You're asking where the LST/re-staking yields actually come from... Basically, there are two sources: one is the basic yield from staking itself, and the other is the service fee/incentive for "selling the same security again" (project subsidies, points, airdrop expectations, etc.). It sounds pretty attractive, but the risks also stack up: contract issues, validation node/operation failures, liquidity slippage (the more people want to run, the more LST starts to discount), and if the re-staking layer has problems, it might not be a matter of earning less, but getting stuck or losing funds.

My current approach is a bit stingy: first, calculate whether the extra gains from multiple addresses, gas, and time costs are worth it, then check if the exit path is smooth and whether I can withdraw at any time. By the way, it's normal for those on-chain tagging tools to be criticized as "lagging or misleading," I don't fully trust tags anyway; I prefer to look at the contract and fund flow myself, and be less naive. That's it for now—don't treat the "yield curve" as a salary slip.