porn on facebook

ok so as i was looking at porno websites (for my job!!!!!!! maybe) i see in a lot where you can share this on face book, twitter,and others really? would you want to share with your friends how good this girl takes it in the butt, or how pretty this girl is in her underwear? i mean come on face book is for you to share with people you know  and porn is to share with the people you don't or your girlfriend (i wish) does anyone really use this with there own profile of there real self id really like to know because god dame it i want that link.  ;)