There are some more numbers:
To opt out of full disclosure of various information, a user is required to click through more than 50 privacy buttons, which then require choosing among a total of more than 170 options.
The FAQ section relating to privacy on Facebook’s “Help Center” alone adds up to more than 45,000 words.
Even if a user changes all the settings on the privacy section of the site, certain pieces of information are still shared across the site unless a user takes further action. Furthermore some information no longer remain private because Facebook has also added a feature, called community pages, which automatically links personal data, like hometown or university, to topic pages for that town or university.
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Facebook’s privacy is a complete mess.