[codeboost]

Facebook is a dangerous social experiment. It's not a 'virtual passport'. Rather, it is a 'virtual bank', except they don't store financial information about the users, but everything else. And that is an unimaginable amount of power.

Given that their intentions are different from their user's (they want profits, users want... to share photos), it is not hard to assume that Facebook does and will use the user data in order to maximize profits or grip on power.

I think that nothing good will come out of this marriage of Spotify and Facebook.

Facebook gains a lot of meta information about the Spotify users (and music taste tells a huge amount about a person), whereas Spotify is reduced to being a convenient and easily replace-able bit pipe.

Now they'll be able to run their social algorithms based on music habits and offer us the best, most relevant and unique crap for sale on the market.

Or one day the government decides to isolate the listeners of The Doors and deny login to every site that uses facebook as a virtual passport.