Does KuCoin use KCS?

Could you elaborate on the relationship between KuCoin and KCS? Is KCS utilized as a means of payment, a reward token, or does it play a different role within the KuCoin ecosystem? Does KuCoin offer incentives for users to hold KCS, and if so, what are they? Furthermore, does KuCoin have any plans to expand the use of KCS in the future, perhaps through new features or services? Understanding the intricacies of how KuCoin leverages KCS is crucial for potential investors and users alike.