Uh, every single time I wanted to quickly circle something in a screenshot? Every time I wanted to quickly crop an image? Every time I wanted to draw a diagram?

MS Paint has been there for me through thick and thin.

Yeah, I'm not about to become a graphic artist with it, but what does that have to do with anything?

And what's more, I don't know what you're on about with Notepad. I've taken more notes in Notepad than any other program, no contest. "Toy"? Is a butterknife a toy because all it does is spread butter?

Snipping Tool is way better at any screenshot-related task.

And, er, you draw diagrams in Paint? Where you cannot even edit a damn text-box? [^1] Really?

[^1]: https://answers.microsoft.com/en-us/windows/forum/windows_10...

Indeed. Why isn't Microsoft thinking of its enterprise Paint users?

I think most people have at least once used MS paint. If that's not an indication that it's a useful program, then I don't know what is.