The Mainnet has 2,289 active stake pool operators, which comes out to >99% decentralized, with 71.09% of the total ADA in circulation being actively staked on those pools ($26.83b/$37.7b). It has an incredibly active and healthy mainnet...
Nothing useful is a HUGE stretch - unless only smart contracts are 'useful'. The ecosystem is new but growing rapidly. Let's circle back to this comment in 1-2 months?
