I am replying from a new ASC ID (previous ID was jaascione), because I just got off the phone with Apple Support, and I was told that the ASC ID I created this morning picked up an old Apple ID that I no longer use (created years ago and long forgotten) and assigned the old email address to the new ASC ID. They told me I had to create a new ASC ID and assign to it my current email address. No other way around it.
Also, BTW, they tell me that unless I can remember the old Apple ID password, I cannot delete the old Apple ID. So now I have two Apple IDs and two ASC IDs. I guess I'm a lucky guy.
Bad planning on the part of Apple, i.e., requiring a completely different ID for the Apple Support Communities. However, the complaint I politely lodged with the Apple Support person seemed to fall on deaf ears. Oh well.
End of story, I guess.