Not trying to support any one side of the discussion - but as an active researcher myself, I would not trust anything that is published in a sketchy journal like this. It has no credibility in the scientific world at all - regardless of whether it is officially recognized as "predatory" or not. (If not - it's only a matter of time till it will be). The broad scope of the journal is the first (but only one of the most obvious) sign of its below-reasonable credibility, as they fail to attract enough quality original research in any one more specific subject area. (Not to be confused with such journals as Science and Nature).