Predatory-journal papers have little scientific impact

"Predatory journals are those that charge authors high article-processing fees but don’t provide expected publishing services, such as peer review or other quality checks. Researchers and publishers have long voiced fears that these practices could be harming research by flooding the literature with poor-quality studies.

But the authors of the analysis, posted to the preprint server arXiv on 21 December1, say their findings suggest papers in predatory journals have “very limited readership among academics”, and therefore have little effect on science...."