Microwave oven keypad controls are a terrible example: I've had some terrible troubles attempting to use ones that force you to set power level - half the time start isn't even obvious...

I bought one with a timer knob and a power knob that is mostly usable (but still poorly designed in some ways). Usable enough that I bought the same model for my parents. I would like the power level to be a slider not a digital knob, even though the knob is an improvement over a keypad.

Hard agree. I had to laugh at that sentence. I realized it wasn't really a fair analogy but also just kind of going off the copywriting example above. It's interesting how helpful this kind of thing is for different disciplines.

No, but OTOH I'd be a little bit surprised and confused if someone who designed microwave oven controls wrote a self-important blog post about how skillfully they copied another's design.