> ["Ajacks"] Makes me wonder how fast and loose they were playing with instructors...

Yeah... but that's just one word on whiteboard totally out of context. You don't know who wrote it, it could have been a student literally writing it for the first time after hearing it uttered, or perhaps, the instructor was spelling out the correct pronunciation to discourage folks from saying "A-J-A-X". Whatever the case, this doesn't make for a good "gotcha."

IMHO, there's too many jargon-jockeys in this field and not enough people who can truly explain things. Getting the acronyms strictly correct is the least of the problems.