LiquidPhD
They stopped making them in the 90s and early 2000s when they quit making calculators. They made the absolute best RPN calculators that have ever been made, but shut down their calculator division. I prefer RPN, but I guess TI has a stranglehold on the market selling calculators without innovation for years and years. Ah well.
I think for some people, there is zero difference between the two. These kind of people are “you are what you do” kind of people. Lazy people have lazy behavior, unproductive people have productive behavior, etc.
It could also be that they take “you are unproductive” to be a sort of shorthand for "Right now, you are being unproductive. How people perceive themselves and others in time can be strange. That can also cause problems with communication.
Anyway, have a great week!