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If 'has your contact info in a database' amounts to a "Shadow Profile", there are quite many shadow profiles of you laying around. It probably has relations to all the people on Facebook who have your contact info added, but overall this is much ado about nothing.

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By what measure do you assess "quite many shadow profiles of you laying around" to be "much ado about nothing"? Isn't that exactly the problem?

What of one -- and one is all it takes -- company, disaffected employee, or black hat desiring to analyze, filter, or publicize data about me, even in aggregate? What of user preference or control? What of the right to be left alone?

But how much can others fill in the "blanks" of your shadow profile compared to FB ?

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