We will get student feedback and comments whether or not we want it. Some will be through formal channels, some through casual commmentary, and some will be through third party sites or social media. You cannot avoid it. They will supply it solicited or unsolicited.
Some feedback will be very useful and some will not be.
Some feedback will be think fast and knee jerk reactions, and some will be think slow and be reasoned and well thought out (Kahneman 2011).
As a responsible, accountable professional, you will need to know how to deal with feedback, perform customer-relationship-management, and deal with it. If they give feedback, they will expect to get a response. They will expect to see a change. These might be unreasonable expectations, but they will exist. They will expect to have a voice and have it listened to. It is your job to manage this and be able to explain what is accurate, what is not, what is reasonable to change, what is not, what will change, what will not, and what the expected results will be of the change. This has to be communicated in a way that shows respect and appreciation for the feedback.
All feedback is good; to a point. Feedback can confirm, but you can really use feedback that tells you something new, something you do not get from other sources. There is value in all feedback and it can be intel on what is happening and how the class feels. Just because you do not like the feedback, or you do not like the way it is voiced, it does not mean that it is 'bad' feedback. All feedback tells a story. These expectations of student involvement have been increasing over the decades and it is not reasonable or feasible to wish them away. If you simply dismiss student feedback or talk at the students without talking with the students, you stand a very real chance of alienating the student body and creating a us-them mindset.