It was extremely helpful to me, to the point where I could pinpoint basically all my insomnia nights (retroactively, not the night they happened) to accidentall

It was extremely helpful to me, to the point where I could pinpoint basically all my insomnia nights (retroactively, not the night they happened) to accidentally turning F.lux off. But the research on it seems pretty clear, so I'm convinced it's just a potent placebo effect. There's nothing wrong with that!