Soft Staking or the Cash Back Investment Program of KuCoin offers rewards given the fact that users just need to hold a certain cryptocurrency on their account. There is no minimum or maximum amount to hold in this program which also gives out options for users to withdraw or keep their cryptos on the said platform.
Check out more about Soft Staking here: https://kucoinblog.com/what-is-soft-staking-kucoins-new-staking-program-sk-st