She WANTS public approval...
It takes stories like this to get the facts out to people.
It's not like she went to a mall and flashed the public to assert her right to breast-feed her 6-year-old.
She doesn't sound like someone looking for approval, but someone who is trying to help others who are feeling a lack of approval for doing what is perfectly natural.
It wasn't long ago that women were being told they were crazy to breast-feed. Of course, that was the story from the companies that want to sell formula, but it took a long time to overcome that perception and convince people that breast-feeding was better.
Just go to the story and look at the comments, and you'll see people still saying that formula is better. Ignorance is bliss, I guess.