I have seen a few cold decks in my day, such as a deck of ash that was left when the market for ash tanked one year.... made great firewood!
But back in the day, the only reasons I could come up with for a cold deck instead of loading hot onto trucks or rail cars would be either for a swing yarding application where the logs would be chokered again to swing to the road or rail head, or in the case of a road or rail head being under construction, but not quite completed, and still short of the landing. Am I close on this, or were there other reasons for cold decks? I would think the wood would begin to check after a while if it sat at the deck too long, unless the area got a lot of rain.