The publishing model of MDPI and Frontiers has resonated with thousands of researchers. The two publishers offer a high likelihood of acceptance and speedy publication in well-ranked journals, typically coupled with peer recognition (and pressure) when publishing in guest-edited collections.

MDPI journals have been included in the list of predatory journals.

MDPI mega-journal delisted by Clarivate / Web of Science - M.A.

MDPI is a well-established publisher of open-access journals, with a good reputation in the scientific community. While concerns about predatory publishing practices are valid and should be taken seriously, it is important to approach such claims with caution and to evaluate the evidence carefully.