Hadn't heard or seen it for a while now, and thought it had gone away for good.
Anyway, it is also common in the photographic community not to use the term incorrectly. From what i've seen the last couple of years, i'd even say most people do indeed not use the term incorrectly.
And it's never too late for the ones who don't to start using terms properly.
Next on the list of inpropery used terms is MLU.
Rarely ever used to describe mirrors that are locked up.
We'll get rid of that too!