Stockpiles should be increased to keep them relevant.
Most common container: Chest (36 slot)
Stone stacks: 3
Stone stockpile: 70
Stones in chest: 108
Hide stacks: 4
Hides in stockpile: 30
Hides in chest: 144 1x1, 72 2x1, 36 2x2
And so on.
Add the fact that you can't select specific items from a stockpile, and that most stockpiles will take up more space than a chest does, and you can easily see how much stacks have reduced the usefulness of stockpiles. Please just make them larger.