The surge in open-access predatory journals is making it harder for contributors and readers to distinguish these from legitimate publications — a confusion that is fostered by the predatory-journal industry. One solution could be to deploy a variant of a well-established quality-control test. The scientific community could submit replicate test articles several times a year to a wide array of open-access journals, suspect and non-suspect.
From Steven N Goodman who, as ever, is worth reading. Of course, in one sense, it is a question of serial monogamy, or polygamy.