Wheezing canaries failing to explain use cases for web3, "It's x, but on the blockchain!"
Most of this site points to archives on a 3rd party website that we hope doesn't go down. Figuring out a way to move that to the blockchain seems like it would be a pretty good use case.
You can argue about the feasiblity if you want, but there are a lot of people who want stuff on here gone, and its roughly a single point of failure. Replicating it across however many nodes? Well, that becomes about as permanent record you can get.
I think it'll be the ones who offered stupidly high earn/stake rewards
Eh, if you're going to be going just by "Rewards are higher than what I can get at a bank and on par with an index fund" it really isn't that good a way to look at it. The basic idea of where these rewards come from a cut of the fees for providing liquidity. You have to know how the fees are coming from. Loaning out 1000 cash for 3% is a very different proposition than putting that same 1000 in a liquidity pool smart contract for .3% of fees in a liquidity pool that is doing X volume in a day and you have Y% a share in it. At a certain point of volume you will be better served by the loan, at another the LP smart contract will blow it out of the water.
To illustrate, here's Curve, generally a reputable joint, has been around for years at this point.
Its showing various pools: Its token + token (+tokens if neccessary) their rate, the daily volume, and how much that is in that pool.
In the one I highlighted, its 4 stable coins, so theres no meaningful IL, and you have a base rate of 7.36 that comes from the basic idea I've described, a bonus of CRV, because that pool is close to the line of Total value locked (TVL) vs volume, and an extra +.78% because they must have a deal with SNX for something or other.
This isn't depositing your money to a bank and getting intrest on the fees they make from loans. This is depositing your money in the Dow Jones, and getting a cut of all the trader fees.