Why do people confuse Stance v.s. Stretched v.s. Fitment?

Fuck, English is my 2nd Language and I, at least, know the differences:

Stance = Overall look of the vehicle with wheels and drop; aka, how it sits.
Stretch = Rims and tires aka, how the rims having smaller-than-spec tires mount on there.
Fitment = Wheels And Hub and Offset.