There certainly are these dodgy journals out there, but be somewhat skeptical of why the journal Science, which has fought tooth and nail against making its papers open access, is publishing this -- they want to imply that open access journals in general are scams.
It's true that Science is very invested in this bad (for everyone else) publishing model, and I suppose if somehow, by omission, they managed to convince the population that open access is inherently scammy, that's all the more convenient for them. I wouldn't necessarily group Derek in with that, though, and he's not wrong about this.
