The way I took it was that people were telling me to go and nurse--not necessarily to shove it in peoples' faces, but because baby was hungry and it was normal to feed him.
After driving to the school and then being in the lunchroom for 45 minutes, DS would have needed to nurse while there.
I saw those too. Maybe I'm misremembering... I thought I saw several 'go and make sure you nurse whether he needs it or not' type of things. I could be mixing and matching thread's in my head, though . Certainly if he needs to eat I would have fed him regardless of their protests. But I also wouldn't have gone out of my way to make sure he had to nurse, just because of their response, KWIM? It's sad your family isn't supportive, I would have been livid at them too!