> one day I plan on thinking deeply about what these people have in common because on the surface they seem rather random -- some are technologists, some aren't
I've had the same thought. I'm a software engineer in my 30s and I still use it religiously. I have a few friends who still use it, too. They are a high school teacher in his 30s, a project manager in her 30s, an attorney in her 40s, and an audio engineer in his 30s.