It was definitely worse on old hardware, and with the many old and unrefurbished computers that are likely inflicted with capacitor plague, you’re likely to blo

It was definitely worse on old hardware, and with the many old and unrefurbished computers that are likely inflicted with capacitor plague, you’re likely to blow something up if you power one up that’s been sitting idle in someone’s basement for the past couple decades. With modern power management there’s less of a reason to power it off. S3 can power down most peripherals when they aren’t being used and draw just a few watts. Even when shut down, the PSU still needs to consume power so it can turn on when you press the power button, keep the internal clock running, and a few other things. It’s minimal draw but it’s still using electricity. Only way to completely turn it off is by switching off the PSU (if you can) or unplugging completely.