OK. So I'm still stuck.
I thought I'd figured it out.
Our challenge is that ALL of the questions are showing for public view... even though from the account settings form designer page I have selected 'master admin only'
Here's what happens:
Several of those questions are intended to be VIEWABLE by master admins only.
But all of the questions are showing to everyone. [see attached screenshot]
We don't want this! Only master admins should see the answers, should see the form field labels, for several of those questions.
So then I reread Michael's notes above.
And thought to myself, maybe I'm supposed to delete the questions that I want master admin view only from the user/signup form fields, and ONLY list them in the account/form fields.
So I tried deleting them from the user/signup form, and registered a test user, and this time ONLY the user/signup questions showed up for the registration form a user fills out, and then when that test registrant was accepted, all of the labels showed up on the profile page, but with blanks on the other side of the colons.
So I'm still not getting this.
I've sent some screenshots in via support ticket, but if anyone reading this 'gets' what I'm trying to explain and can maybe suggest something else for me to try, I'd be grateful.
[We're 'this' close to feeling ready to go live, but obviously need the signup questions working to do so.]