Interesting perspective; FWIW, I have OneNote, Sublime, Word, and ToDoist installed on my computer, and use them daily. But I still fire up Notepad several times a day. It's responsiveness and simplicity still make it useful for me. Basically, if I have several screens open and need to quickly type something somewhere, I'll use Notepad; but I'll also use it for quick review of config or small log files, where again it's speed and simplicity beat Sublime's features and syntax highlighting.
Also, I use it several times a day when I need to strip formatting in paste or otherwise do quick manipulation - granted, an edge case that perhaps shouldn't exist... but there it is anyway :)
To me, the most compelling feature of Notepad is that it's installed automatically on every version of Windows. It's the MVP for a surprising number of tasks.
Yes, its one of the best places to go on an unfamilliar computer to quickly get somewhere to paste data and/or edit it with a monospace font.
I often find myself also just pasting old bits of text in there similar to how some people might leave old versions of code commented out while working on a replacement - its a sort of shelf/sidebar to place things that I might need later.
