The Letters come over as following a Template, and an American one at that, which will jar with the public here in the U.K. When the Writer claims to be "one of your neighbours" but lives nowhere near you, and you live miles from the nearest K.H., it comes over as a crafty Sales Pitch to us here.
Also talking down to adults in the way they do, as though we are children, or simpletons, means the Letter goes straight in the Bin.
Another exercise just to keep J.W Rank and File feel as though they are doing something positive, is a major Fail, just like the Carts.