Positive feedback is most essential, 'tis how we improve and grow, If one gets only negative feedback then that is counter productive and creates a nervous wreck for those cases that be border line. Most people are Not that egoistical that whatever they do is always absolutely perfect and can never be wrong. Awaiting a coroners inquiry is not the best form of feedback. I know mushrooms grow in the dark and only fed muck, but ye be no mushroom or spore.