"Inspiration Porn", What?

What is "inspiration porn", to me porn has always been inspirational. I DO NOT GET IT? As everything there is a down side to "inspiration porn" as in the case of Oscar Pistorius.  I think people are staying just because you see an image that makes you inspired, or feel good you do not know the full story of those people. 
Maybe I can compare "inspiration porn" this way, a lot  of people would see my film and look at me as I was a hero since I beat the odds. I am just living my life to the fullest!  My life has not been perfect and I have made my share of mistakes, in today's world almost everything can be edited.  Really I'm not a hero, anyone can accomplish anything as long as they have the passion.