I have a different take on why the boys in Brooklyn INSIST on this policy of carefully screening those who volunteer for QB work...
The thought occurs to me that this is yet another example of making some activity "special" and therefore a "ring" to be sought after, if you will. In other words, making it something that not all qualify for, makes those who DO make the grade, work harder to "keep the privilege" with the resulting larger pool of unpaid workers to build the Watchtower Society's empire.
Sort of a "reverse psychology" thing.....like admonishing a child *not* to eat any more cookies from the table....
Much the same as making the Elder's Flock book restricted circulation, same concept. The Flock book really is nothing all that special, just the restrictions on it make it seem "special"...the book that Pioneers who graduate from Pioneer school has the same purpose in my mind.
What do you think?
---Dan