This is an interesting insight into the “industry” of publishing.
As long as the usurious “article processing charges” exist for free peer review, it would hinder the publications from other parts of the world and would represent a vast gulf. For those coming on to publication for the “first time”, it would make it difficult for end users to understand what is a “predatory journal”.
Most scholars who share preprints are doing their best to make vital discoveries. However, some authors seek to pad thin résumés by publishing underwhelming, repetitive or fake research. As safeguards are relaxed, journalists and governments need to be on high alert to spot such studies.
These articles mostly appear in “predatory” journals, which make use of the popular “open-access” model—charging fees to authors, rather than to readers—to publish any old tosh for money. According to Cabells, a firm that maintains a blacklist of such journals in English, some 1,000 existed in 2010. Today there are at least 13,000