Feedback in any form is a good thing. Most companies don’t have the mechanisms in place to collect feedback today so it gets lost, and hinders you from optimizing that feedback in a full product lifecycle.
There is good stuff coming from your customers. Listen to it and do something about it. Their design suggestions, even simple things like color, grip or other suggestions, can feed right back into the development process positively impacting the effectiveness of the product.
Listening to feedback from your market allows you to make much better decisions based on data and helps you to focus on True Quality in your products.