stETH on PulseChain is the copied version of stETH on Ethereum which currently trades at a 1:1 ratio with the price of Ethereum. The purpose of stETH is to earn yield while affording holders the ability to swap, trade and transfer staked positions within various staking DeFi protocols, without the need to stake or unstake their positions first.
The world's largest free airdrop on PulseChain was not simply to give out free copies of everything from Ethereum, rather to allow for teams, groups and projects to come together and build out the most decentralized versions of products which crypto has ever witnessed. stETH serves as an integral part of many projects such as LIDO DAO, Aave, Curve, Yearn Finance, Concentrator, Uniswap and Idle Finance.
Any person with a speculative inclination who believes these protocols will soon become functional on PulseChain would have a strong incentive to obtain and hold stETH prior to these protocols being turned on.