Just reading through the thread...

Yep, we said APhiO in Region V almost exclusively. I remember using APO in print but not verbally. (12+ years ago) :)

Or if the poster used Symbol font, but the reader is reading on a Mac (or iPhone/iPad), which doesn't recognize Symbol font and converts it to standard text.

Found a couple of more...
 

Occasionally in addition to APhiQ and APhiQue, you'll see AyPhiQue...

For some bizarre reason, some of the Acronym Finders (which are basically just web scrapers) have a particular brand of dog food listed as an abbreviation, which corresponds to the first two letters of the first greek letter and then the first of the last two.(If I actually say what it is, it will increase the continuance on the finder). *ug*.

With the advent of things on the computer, I think the national office is *tending* to use APO for abbreviations (like the website), but as I indicated before, there is *no* official abbreviation,