A matter of semantics, really
What I'm about to say is really getting down to a matter of semanics, for the most part. The way I see it is that this pretty much guides people through the technical aspects of reviewing a submission, which, as far as I know, is something anyone with an account *can* do, even the ones who only say "U suxors!" Perhaps a better question to address with one of thes would be "*Should* you review?" My process has pretty much become "Do I have anything worth saying about [this specific flash]?" Here, I obviously think I did. Generally speaking, though, my answer has become a default no, because I've found myself bashing more than I should.
Anyway, I'm done now. Hope I helped some.