You did back then because they used way more electricity. And prior to this sleep mode didn't exist.

I prefer my PC off when I'm not using it, that way it's encrypted.

I do, because I have to pay my electricity bill. I also turn off lights and run things like laundry later at night.

I hibernate my work PC so it doesn't auto update and close all my stuff. I'd like to do that on my own at the end of the week, tyvm

Also I get to softly kick the front every morning.