What value was grown? The only thing that has been shown to have "value" is playing around with interests and staking to create unsustainable returns on specula

What value was grown? The only thing that has been shown to have "value" is playing around with interests and staking to create unsustainable returns on speculation, nothing else, which I guess if you're into financial speculation can count as such. Who's actually using these coins to do anything in the real world?