Earlier quoted context omitted.
Seems like a high enough bar to me. I know zero people like this, despite the article assuring me that we all know someone like this. If I did know someone like this, I suppose I'd think of them as my "coffee friend" or rather, friend who is really into coffee. That is unless they also had a bunch of other esoteric hobbies that overshadow the coffee thing.
Huh, weird. I have a really basic grinder, actually it is more of a thwacker, in the sense that you just plop the beans in there and it'll thwack them to bits (want fine ground for pour over? Hold the button longer. French press? Don't hold it too long). This shouldn't count. You can get really fancy grinders. And who doesn't have a favorite coffee place?
The Seattle and Vancouver people did. Boston was split. Wisconsin didn't except in Madison or Milwaukee.
It depends where you live. A lot.