Goods can be retrieved to the closest storage/shipyard for free, by repeatedly demolishing/building connectors. This can e.g. be used systematically to teleport goods from remote or even inaccessible locations back to base.
It's not a massive exploit, but consider the depicted YSNP scenario: The inaccessible top plateau contains plenty of space for farms, which can be built with a little unity. Potatoes, vegetables, and tree saplings grow fairly well without irrigation. Consequently, it's possible to use the top plateaus for all the food and saplings, and simply teleport it for free when required. Not fun, but effective. And because space is scarce, the space that the farms would take in the base can now be used for other things.
To counter the exploit, connectors would have to be emptied before they can be demolished. That way, at least there would be a significant unity cost to teleport the food down the hillside.
