Is there any problem whatsoever about users regularly requesting features that the product already has? That doesn't seem distinct from customer support helping

Is there any problem whatsoever about users regularly requesting features that the product already has? That doesn't seem distinct from customer support helping you understand how to use the product, which also doesn't seem like a problem. Of course, you could use data about customer service conversations to inform design decisions intended to make certain features more or less prominent in the UI.