[dredmorbius]

I was hoping that "add to your list" implied that 1) the list had additional items on it and 2) whatever finite set the list contains, it's incommplete.

Yes: the context in which data will exist in the future is not the same as the context in which the data were initially provided or created.

Hell, even the context in which data are accessed or provided virtually always exceeds the data subject's awareness or understanding, and would not be considered acceptable.