This is a ridiculous idea to me. If I run a business, my internal evaluations of candidates and employees are no one's business but my own. They are my observations about the world, with the productive end of hiring better employees. Whether my decisions affect you or not is really not relevant; we make free decisions that affect other people all the time. I take issue with any claim that people have legally-binding private obligations to each other beyond abiding by contracts, and refraining from violence and fraud.
OK, what about a compromise: you can keep your conclusions private, you only need to disclose to me the raw data you used to reach such conclusions. Is that better?