So if the policy is as follows:
"The last card of an inactive publisher should be retained in the current file indefinitely."
What do the elders do with all of those cards in their inactive files? Every congregation must have a bunch of cards for people that disappeared years ago, some of whom none of the elders even remember. Look at me, I moved 500 miles away nearly 20 years ago, do they remember me or my dad? Think about it, they must have cards for dead people!
So formal regulations aside what do the elders really do with all of those inactive cards, especially the really old ones. Do they throw them out even know they aren't supposed to? Do they try to find some other congregation where they think the inactive witness might be and send the cards there? What do they do with this stuff?