Björn Brembs takes Elsevier through the new, five-part “predatory journal” definition:

So as far as this exercise goes, at least one of the main legacy publishers fits the five criteria for being branded a “predatory” publisher. According to the authors of the definition, this is the first step to solving the problem of predatory publishing. I’d say that canceling all subscriptions to prevent further funding of predatory publishers would be a reasonable next step, now that we know how to identify them.