Strong beliefs can influence the way we deal with emotionally charged topics. Researchers, editors, and reviewers are not an exception. Declaring such nonfinancial conflict of interest when handling or reviewing submitted articles is often obligatory; however, the declaration is not a license to submit a biased review with personal insults or to break the journal’s guidelines. This kind of poor practice can be a clear sign of the seriousness of conflict of interest. In this article, I argue that hostile, unethical, and biased behavior of reviewers and editors often arises from a serious nonfinancial conflict of interest, which should not be ignored or undermined.