This paper examines the problem of vituperative feedback from peer reviewers. We argue that such feedback is morally unacceptable, insofar as it humiliates authors and damages their dignity. We draw from social-psychological research to explore those aspects of the peer-review process in general and the anonymity of blind reviewing in particular that contribute to reviewers' humiliating comments. We then apply Iris Murdoch's ideas about a virtuous consciousness and humility to make the case that peer referees have a moral obligation not to humiliate the authors whose work they review.