Academic ethics stipulates that authors cite and review their related previous works when submitting a new paper. This article explicates this principle by demonstrating how the authors of a paper published in this journal failed to cite their previous work, thereby jeopardizing the reputation of this journal. Hiding information of previous work leads the editors, reviewers, and readers to misjudge the originality of a paper. When readers attempt to interpret both the older and newer papers, they may become confused, as newer papers are usually dotted with minor inconsistencies, even retaining the mistakes of the old papers. We straightforwardly highlight such misconduct in the hope of recovering Taiwan's academic reputation. Such an explicit, public and responsible accusation and analysis of academic misconduct will effectively and efficiently enhance academic ethics.