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A comment on Facebook is embedding tracking data inside the photos you download. Parent comment

Re:Facebook is embedding tracking data inside the photos you... by jakeogh on Saturday July 13, 2019 @04:57AM (#20427179)
The knowledge that people can ref things by their hash is a serious problem for power centers.
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Re:Facebook is embedding tracking data inside the photos you... by gmueckl on Saturday July 13, 2019 @08:56AM (#20427816)
What does this comment mean? I understand the words, but not the meaning.
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Re:Facebook is embedding tracking data inside the photos you... by pjc50 on Saturday July 13, 2019 @05:05AM (#20427199)
> power centers.

What does this mean here?

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