system
A chat on subreddit /r/pcmasterrace
human
These dudes don't know what they're talking about. Yeah a reboot will fix some issues occasionally but to say people are having issues because they don't shut their PC down every night is silly. Sleep mode works great if you're worried about electricity.
gpt
Yep. There is nothing wrong with using sleep mode unless you are trying to have essentially no electric bill. Just doing laundry once or cooking a single meal via electric is probably like leaving your PC in sleep mode months or even longer. And almost every component is in a low power state having a minimal effect on operational lifespan.

And if you want to leave your PC on most of the time (like servers, which the entire world runs off of...) pretty much every component is designed to operate for years at this point. In the past, I'd be worried about spurious HDD writes depleting lifespan. But now the only one I'd be worried about are AIO coolers and most servers don't even use those for the aforementioned reasons on lifespan.

The only cogent argument here the OP could have made but didn't is that Windows non-server editions aren't really designed to have long uptime and you definitely can get weird OS issues the longer  your PC is on. Most Linux distros are designed with uptime in mind.