Still booting after all these years: The people stuck using ancient Windows computers
Still booting after all these years: The people stuck using ancient Windows computers
Still booting after all these years: The people stuck using ancient Windows computers

If it still works for the purpose, it is NOT obsolete.
Stop fetishizing the new.
If it's connecting to the Internet and not getting security updates, that's probably not good.
So what you said is mostly true, but there are certainly people running windows XP thinking "I just check my email and read the news, this is fine"
Meh.
If the other layers of security are in place, the risk can be managed.
The problem you describe is from things like that XP user running as admin, a failure of security layering.
Security isn't just having all the updates, which is the implication statements like this makes.
I have XP VM's with no service packs that connect to the internet. They're NAT'ed in VMware to an isolated subnet that has its own firewall. No MS ports are permitted out of that subnet other than RDP, and that only from specific IP addresses. There's more, but even just this addresses most security concerns.
This is used for testing specific software that only runs on XP.
For me, obsolete often means that I can no longer repair an important tool if it breaks. If I can't get a replacement hard drive or video card or power supply for my ancient Windows computer, I need to think about getting a new computer, just to minimize risk.
I made an actual post about this last week! Old is getting better with how bad new tech is and the privacy and security over reach. You cant even get a new laptop or gaming system without forking over every data point about your life just to log in. Its absolutely stupid.
Unless you use linux that is.
It's easier to write "obsolete" than it is "single purpose computer often loaded with technical debt and risk". A computer is meant as a general purpose device. If it can only do one, it's mostly obsolete anyhow
That depends on how many things you NEED it to do. My kitchen knife is not more obsolete than my air fryer just because it does fewer things.
And this is a misuse of the term technical debt. Technical debt does not mean OLD. Finished software from the 80s that was complete and bug free has no technical debt. New software almost UNIVERSALLY has more technical debt than older software because nobody has cleaned up the first draft yet. A continuing, rolling package of spaghetti code, patches, unvetted dependencies, and jammed in features that are sold for subscription fee purposes rather than customer need is OVERFLOWING with it. That's what "move fast and break things" MEANS.