There were environmental arguments presented against stacking rocks, and there is nothing lost to an individual by not stacking rocks. There is no hunger or suffering involved by abstaining from that, but the counterpoint was, apparently, "DONT TELL ME WHAT TO DOOOOOOOOOOOOOOO."
:manhattan:
To be clear, the monk comment was dunking on those constantly making weird excuses for their behaviour, not arguing in favour of stacking the rock lol.