@Easy Rhino - Gee whiz, Dude!
You are one the more prolific posters
and valued contributor on this site, obviously spending a significant amount of time everyday (on average) here at TPU - perhaps volunteering more of your free time at other support forums too.
Then you post a survey in this tech support forum, asking what users use their PC for and don't even list "
Participating in Forums" as one of the options!?!?

!
Please do NOT suggest "working the forums", that is,
volunteering one's free time to help posters with their technical issues/questions falls under social media. It does not. That would be like saying flipping burgers at McDonald's is a social event because you deal with customers.
@Solaris17 (3.80/day),
@Caring1 (3.78/day),
@AusWolf (5.18/day!!!),
@Dr. Dro (3.95/day) and others clearly spend a significant part of their computing time performing forum related tasks.
Even myself, I probably spend an average of 3 hours of my computing time reading posts and researching answers then writing replies everyday and my average here is just 1.83.
My computer runs my life. My calendar keeps track of my appointments, reminds me of upcoming birthdays and anniversaries. It tells me when to pay my bills, how much I owe, then my computer lets me pay them. It keeps track of all my contacts (friends, family, businesses, health, insurance, and more). I have over 600 music CDs, 600+ LPs, 300+ DVD and Blu-ray movies, a decent coin collection and more I keep in spreadsheets for inventories (for me and for insurance purposes).
Obviously, you could not include every category in your survey, but clearly there are some better options much more deserving of being listed.
Millions of people still work from home. So "Work" is an obvious option. And millions of people use their computers for "School" too. You didn't even put "Other" in your survey.
I use my computer 5 - 6 hours every day for, in order:
1. "Working" the forums,
2. "Essential" personal and head of household duties,
3. "Discretionary" personal stuff such as personal emails, listening to music (while doing 1 and 2), and keeping Amazon in business.
Are you wasting your desktop PC's potential?
Of course! We all are! Frankly, at least for those who might be reading this here at TPU, most of our computers are more than we really need. Technically, unless our computer resources are maxed at 100% utilization, 24/7/365 folding/searching for a cure for cancer, ET, or some other "productive" activity, its maximum potential is going to waste. Even most gaming activities leave many computing resources idle much of the time.
We humans are odd creatures. Who needs a 80 inch TV in their living room? A big V8 engine in their family car?