The decision to revoke a PhD based on the publication of the Thesis in a predatory journal is a complex and nuanced matter. In spite of this, publishing such a paper in a predatory journal may indicate a lack of academic rigour and quality control, as such journals often have lax peer-review processes and minimal academic standards, despite the fact that PhDs are the highest academic qualifications awarded based on rigorous research and scholarly contributions to a field. The credibility of a PhD degree is vital, not just for the individual who earned it, but also for the academic institution awarding it. As a result, if a PhD thesis is published in a predatory journal, it raises questions about the academic standards and the quality of research conducted, potentially undermining the legitimacy of the institution's degree. Also, I am aware that predatory journals tend to exploit the author-pays model, preying on researchers not aware of the journal's reputation, so revoking a PhD might serve as a deterrent and reinforce the importance of ethical behaviour. Finally, if a PhD thesis with serious methodological or conceptual flaws is published in a predatory journal, it may contribute to misinformation. In such cases, revocation of the PhD could be interpreted as a measure to protect the integrity of the discipline and prevent the spread of misleading research that is out of standard.