Roughly half of all American citizens are in the database and 80% of the photos are unrelated to crime, such as scanned IDs. If this is not crazy enough for you, consider the fact that matches are wrong 15% of the time. And those misidentifications are usually black people.
If you recently updated your Mac, you might have noticed that Apple has now implemented Night Shift, as know from your iDevices. I was just about to delete f.lux, but then I read this. I’m hanging on to good ol’ f.lux for now.