Saves on the electric bill, makes your hard drive's motors cry themselves to sleep. I use FSAutoStart to deal with the RAM if I start up anything "intensive" anyway. I never shut my computer off because when I step away for long periods of time, I start up BOINC. It's a program that works with many institutions to use my computer for research in AIDS, medicines, mathematical discoveries, and climate prediction. (You can let it support anything you want) My drives last years longer, they get their research. Works for me.
It shouldn't be "too busy" to tell Windows that it's working. Other programs do it. Any way, I came here to either report a bug or supply a feature request, not fight about the practicality of it with someone not employed with HTC. I'm off to watch Firefly.