I'm a bit close to this issue at the moment, probably because I was feeding my 5 week old when I pulled up the thread.
He is exclusively breast fed, and I hope that he will be for a while. But we've had a number of issues in his first 5 weeks, all of which have lead to an incredible amount of pain for me. Breastfeeding him has been the most difficult and painful thing I have ever done in my life. (Note that I had a med-free birth. Yes, I am saying that breastfeeding him has been more painful and difficult than childbirth itself.) Because of my experience I will always do my best to never ever judge a mama who cannot breastfeed her baby. (I will still judge people like an acquaintance of mine who expressly said she wasn't going to breastfeed because it would interfere with her social life, aka her ability to drink as much and as often as she wanted to once her baby was born. But that's a whole other issue.)
I would hope that, in return, I would be given the same courtesy of not being judged if I manage to continue breastfeeding him past an age that others consider appropriate. I doubt we will make it that far, but who knows? Don't judge an AP parent and in the same breath criticize the AP parent for being judgmental. I don't consider myself an AP mama, I think I'm more in the middle. But I definitely see the judgmental attitudes going both ways