More often then not on Facebook I see people "begging" the person to not leave, saying crap like "we need you" or "we want you to stay" and other crap. They do it for attention.
I view Steemit as where the adults go to discuss things while Facebook is kindergarten for social media - you learn the basics, throw a fit, piss in your own playground and wonder why people like you.
RE: Leaving? Steemit is not Facebook, We Don't Need a Long Drawn Explanation. Just Leave.