> I got some people who mentioned an Acronym (the project they supported "for years") and asked them to define it, and they couldn't.

That could be a valid test, but I do a lot of government contracting, and that industry is absolutely rife with acronyms nobody knows the expansion of, as well as names that were chosen because somebody thought they were cool but aren't acronyms, but everyone else assumes are acronyms, so they get the capslock treatment.