As a designer I want to be able to use the member data fields on a pages other than the user account page using custom code.
Let us use the data of the currently logged in user on any of the "Logged in" pages or really on any page as long as a user is logged in, like other CMS data.
If I want to use the name and image of a user and display it in the menu, we should be able to do that natively. Some might say that is one of the most basic capabilities of membership functionality. The same goes with all other user data fields.