In most cases product should help user to do what they want quicker and let them go. E.g. if I come to Facebook, I want to get my cat pictures fix and GTFO. Yet

In most cases product should help user to do what they want quicker and let them go. E.g. if I come to Facebook, I want to get my cat pictures fix and GTFO. Yet it tries to lure me into spending as much time as possible :/