As a creative person, I’ve received both good and bad criticism. At its worst, it kills the creative spirit. I know. I quit playing piano when I was fourteen because of negative criticism. At its best, it fosters creativity. It pushes the creative person to try something new, to explore different facets, to embrace the terror of the unknown. That criticism may be harsh at times, but it’s given in a spirit of good will. It isn’t given simply to be given.