Well, some of you (the minority thankfully) are willfully misunderstanding the point.
I breastfed 3 babies for several months each. I was 'proud' because it didn't come easily the first two times, I battled through numerous things, including mastitis. I had no family role models to emulate, I live in an area with extremely low breastfeeding rates etc etc
I believe in the importance of breastfeeding for those who can manage it and actually trained as a breastfeeding mentor.
I even happily use the word boob in everyday language as do lots of women I know.
However, used as a verb like the examples given sounds utterly me, me, me look at me breastfeeding, I'm superior and my whole identity is wrapped up in the way I feed my child, and yes, if said Infront of women who couldn't (but would have liked to breastfeed) - insufferably smug!