The WTBS could not allow the possibility of an "open style forum" to develop in the congregations. Questions would give rise to more questions, leading to discussions and debates, thus interrupting the scheduled "feeding" program.
In order to maintain human support and loyalty in an endeavor, you must convince, indoctrinate, then manage and supervise the behavior and the outcomes. The WTBS could not keep the same numbers of active members once open discussion occurs.
Therefore, individual auditing of personal beliefs is not encouraged but frowned upon as disloyalty, and thus punished administratively.
Perhaps, after the Geritol Body has passed on, a newer more enlightened and empathic generation of JW's may begin the process that leads to mainstream change. Maybe, remember it's still a cult!