All feedback is good, both positive and negative.
I sent an e-mail to the director of the Essex Sustainability Institute giving positive feedback how their lectures had influenced me in introducing sustainability to my business and life; they fed back to me how happy they were to hear this and wanted to use my quote in future publicity of their events. Everyone likes feedback, preferably positive, but constructive negative feedback can be useful too.
From a business and strategy point of view I recognise feedback is important. I am results orientated, I am always encouraging feedback from my customers so that I can improve my products and services to them. Bloggers like feedback in the form of comments and likes, I am sure there are many bloggers who give up through lack of feedback as they feel nobody is reading their posts.
You are an energy system, made up of a network of cells, which since they change are variables in that system. Everything that you are is stored in the cells, their overall activity giving rise to the sense of who you are. Any input to these variables changes them which leads to strife in the system, this leads to the destruction of old patterns and the establishment of new patterns amongst the variables as they naturally return to a new ordered state. Feedback is an input to systems like you, which you require to live and grow. Your reward mechanisms in you brain that uses hormones like dopamine encourages you to go out and seek feedback from your environment, you won’t survive without it.
You can use dopamine reward systems in the form of feedback strategies to encourage positive healthy beliefs and behaviours in yourself and any living thing. Note that with food most mammals will change their behaviour. Treats work the same way with children. Both pain and pleasure are feedback mechanisms, they use different organic pathways but will produce changes in a living system. Better to use pleasure through rewards since if you punish something you will encourage hate, anger and fear from the target of your punishment towards you. The target of pleasure will grow to trust, love and follow you encouraged to take on your beliefs and behaviours.