At first I was like man, that person has a lot of sunflower seeds stocked up, that must have been a lot of sunflowers in their yard, but good for them..
But nope, these are just shells. Hopefully these shells haven’t been in anyone’s mouth…Imagine the mold at the bottom of that tote..
Why would anyone keep this? What do you do with them at this point? Assuming they were seasoned, you can’t really use them as mulch (salt), so like maybe compost, but even then adding that much salt all at once wouldn’t be doing your pile any favors..