This was a schoolboy error on Moon’s part

From Science Fictions by Stuart Ritchie.  Page 186.   

Editors began to suspect something was fishy because the reviews often appeared within twenty-four hours. This was a schoolboy error on Moon’s part: real scientists, who are notoriously busy and sometimes weeks or even months late with peer reviews, would never be so persistently punctual. Moon is far from alone: fake peer review is a staple of the Retraction Watch Database.  In 2016, the major scientific publisher Springer despaired so deeply of the rampant peer-review fraud occurring at one of their journals, Tumor Biology, that, after retracting 107 tainted articles from just four years’ worth of issues, they gave up publishing the journal and sold it off to another company.