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A comment on Global coalition to Facebook: “Authentic names” are dangerous for your users. Parent comment

Re:Global coalition to Facebook: “Authentic names” are dange... by yaur on Monday October 05, 2015 @07:18PM (#10335685)
> I don't know how they do it. But they do it.

A big avenue for this is phone numbers. If you have exchanged phone numbers or texted and either person has the facebook app installed on their phone they may show up on "people you may know"

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Re:Global coalition to Facebook: “Authentic names” are dange... by CPLX on Monday October 05, 2015 @08:23PM (#10335992)
This is almost certainly it. It comes from adding each other to your smartphones address book so a name shows instead of a number.
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