Quite clearly fake, as is most of those kinda of threads on 4chan - regardless, why would you bring the opinions of a bunch of morons upon oneself? Surely she knows she's overweight? Surely she knows that people aren't going to go "Wow, your pockets of fat are really attractive to me." And why would she randomly post her picture up on a site she knew nothing about? Surely she'd have seen the thousands of other threads similar to that and would realise that no one on that board has anything intelligent to say?
If not, she's stupid. or "was stupid".