[yazaddaruvala]

> they manipulate people in controlled experiments to extract as much money from them as possible.

You just described A/B testing. This is a technique used by every successful company. The only thing unique about Facebook is the data.

[gnulinux]

FB is also okay using data other companies choose not to. Ethics is definitely a factor, too.

[luxpir]

This is the thing. It's a fine line between offering someone a solution they might want or appreciate based on their search. Another to manipulate them into wanting it through emotional plays.