Right, but filling that slack fill would consume the same amount of volume, and more mass. So filling in the slack fill is strictly worse for transportation em

Right, but filling that slack fill would consume the same amount of volume, and more mass. So filling in the slack fill is strictly worse for transportation emissions. And crucially, the manufacturer would have to produce more of the actual product which in turn means more emissions from raw materials and refining those materials into goods. I think, in a way, that subreddit really reinforces what the parent comment is saying: people don't like it when their consumption decreases. When we see this [1] our thought isn't "how great it is that the company didn't spend emissions on building a full set of crayons", it's "this sucks, I didn't get a full set of crayons". 1. https://old.reddit.com/r/NonFunctionSlackFill/comments/egm4a4/coloring_book_for_my_son/ https://old.reddit.com/r/NonFunctionSlackFill/comments/egm4a...