do you think that facebook really is a threat to privacy?

yes because everything is stored on databases
To say too much about themselves, Facebook members take risks.
    Many newspapers also deal with the fact that Facebook sells personal data to advertisers.

Indeed, thanks to the information, Facebook knows a lot about all its members and can respond to advertising oldest dream: to go directly to targeted individuals. For example, advertising for diapers for young mothers, for parties and meetings for singles,