Beyond these minor oversights, the script unexpectedly uncovered 280 significant errors (molecular weight errors and nominal weight errors), which were often rooted in fundamental misunderstandings of how to correctly calculate exact masses. In some cases, unusual discrepancies between measured and miscalculated masses were simply overlooked, while in others, the measurements appeared to validate the incorrect calculations. It is hoped that this script will save authors and reviewers considerable time and effort in identifying and correcting such errors before publication.