Interesting suggestion, Black Sheep, but they're a suspicious lot and I don't think they'd simply forward a publisher's records to no one they knew.
When my wife and I moved to a congregation in Australia from another overseas, the congregation secretary here made a rather enigmatic statement to my wife about the contents of her publisher card, suggesting rather jokingly that they'd been warned to watch out for her. It has always intrigued us about what that letter of introduction said. My wife, like me, was always rather "independent" and spoke up when we saw the crap going on in in the congregation, but I just don't know whether the elders in that congregation would have gone to the trouble to indicate that my wife should be watched!
It's a funny thing that by paying a nominal fee you can get to read a printout of your credit rating, and in some countries also see the contents of your police files. The WTS amasses information but carefully keeps it.
Years ago, for some reason, our book study conductor passed around our publisher cards containing our records of field service for the previous year or two. (I think the reason wa to shame us into doing more field service). I was quite surprised to see hours inserted when I'd failed to put in a monthly report -- the congregation secretary was evidently eager to ensure I had runs on the board to maintain my status as an MS, even though some of them were fiction. The month after I got married, my BS conductor told me he'd put i a report for me while I was on my honeymoon to make sure my prospects of becoming an MS weren't hindered.
It sure would be interesting reading those cards.