For many (most?) amateurs and customers "The proper exposure" means just "normally expected" lightness, DOF, motion artifacts, in the final photo/print.
They rarely care about intermediate data (like raw files).
I suppose the other approach is to weed out unnecessary adjectives. In common use we have 'correct', 'proper', 'optimum', 'best', 'good', 'maximum'. If they're all synonyms that looks like at least five too many.
Also, the term "latitude" is very common among photographers.
I have a few shutters that don't have very fine speed gradations, and even combined with the aperture control (to the point of relaxing DoF requirements slightly) I'm 1/4 EV down from the hottest possible exposure. This isn't a proper exposure?
nerd
/nəːd/
noun
a person who is extremely enthusiastic and knowledgeable about a particular subject, especially one of specialist or niche interest.
"the executive is an unabashed film nerd"
Thread "why don't cameras have raw histograms" got too long. I stopped reading it.
I would like to see evidence that an in-camera Raw histogram would help. Can I install RawDigger or FastRawViewer to get an idea? I can't really imagine the situations where I'd want to use a Raw histogram.
ETTR is no good for me because it makes JPEG too dark. With modern denoise algorithms, noise in underexposed areas is no longer a problem. Or if it is, shadows can be darkened. That is the problem ETTR used to solve. It seems to me that almost any reasonable exposure can be made to work with a good Raw processor such as DxO PhotoLab.