It's really a personal preference, and I don't think you'll get a concrete Yes or No response.
I turn mine off when I know I won't be using it for awhile, e.g.; several hours. The reason for this: The PC won't consume electricity, and if a power outage happens it will already be off.
I however just log off if I know I'll be using it within an hour.
Complete shutdown and cold starts are however considered by many as being bad for your hardware, that's why there's some people that never shutdown.
There is a good rule that applies for many thing "When in doubt, dont. Be cautious and always take the safe before the unsafe."
Hibernation mode is useful as it shuts down the computer so it dont use any power, while still allowing you to boot and be back in business relatively fast. But always using hibernation is maybe not so good, because its good for the system todo a real boot, especially if you have installed/uninstalled something.
If you are leaving the PC for a brief period, you should leave it on. But if you are leaving the house and wont be back in couple hours or are going to sleep, then you should power off (or use hibernation) the computer as it will make your hardware last longer, reduce your power bill, and be more environmental friendly.
I think it should be added that early PCs were much more likely to suffer from being turned on and off than the ones made today. The idea that they should be left on all the time is outdated.
I think it should be added that early PCs were much more likely to suffer from being turned on and off than the ones made today. The idea that they should be left on all the time is outdated.
Cold boots don't hurt the hardware anymore? I keep hearing that your hardware will wear out faster. My computer is 6 years old so I probably should be concerned?
(I leave mine on all of the time because I'm lazy )