On the other hand, placebos are surprisingly effective. So is therapy. It rather reminds me of the advice you find in small print on all magical diet aids: Use with exercise and a restricted diet.
ETA: On my Facebook feed, Stephanie Zvan said,
It is not a great article. The recent studies do show a pretty robust effect for antidepressants in major depression.ETA: Before You Quit Antidepressants ...
What they show in minor depression is that *treatment* helps--the placebo effect as it actually is (not some tapping into the subconscious or what have you). Now what they need to do is figure out what's going on in people getting (or even just seeking) treatment that is helping them. Having someone listen? Having a disinterested party wanting them to get well? The decision to get some control over what's happening? I don't know, but all those could lead to other changes that may help with minor depression.