This discussion is precipitated by a discussion in a list serve that I am subscribed to concerning predatory publishing and the issue of working with and publishing in MDPI journals.
In my experience, when the subject of MDPI journals is put forward, this tends to raise polarizing discourses and opinions.
My question: What has been your experience in dealing with MDPI journals either as guest editor, author or reviewer?
Recently, researchers in Poland published this study that goes some way to addressing this polemic.
See: Krawczyk, F., & Kulczycki, E. (2021). How is open access accused of being predatory? The impact of Beall's lists of predatory journals on academic publishing. The Journal of Academic Librarianship, 47(2), 102271. https://www.sciencedirect.com/science/article/pii/S0099133320301622