Can people at least stop saying that f.lux does nothing? I have used it for like a year now and it has profoundly improved the length of time I can look at my c

Can people at least stop saying that f.lux does nothing? I have used it for like a year now and it has profoundly improved the length of time I can look at my computer screen. Also once I started using it I didnt have the slight double vision you get from staring at bright blue light for long periods. The study may be shit, but f.lux is effective.