User Attributes (add default message)

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I have set up some custom attributes for my members website.
I've customized the profile page a bit with CSS.

What I would like to see happen is if there is no answer filled in on the form in the user profile page to have that attribute display a default message like, "No info provided" or "not available" or something so it's just not blank.

Even better would be to not even show the attribute if it was was not filled in.

Help? Tips? pointers?

cursal