The Society's leaders are so enamored of their own exalted, spirit-directed positions that they don't understand that continuing to tighten the screws, such as by "seeking out leaks", is exactly the wrong thing to do. Enough thinking JWs -- including elders -- remain, that they will chafe under the tighter rules and become the very leaks the Society wants to plug. This is how it has worked until now, and it will continue to work that way. If they tighten the rules too much, the only JWs left will be those who are so beaten down or stupid that the organization will soon collapse for lack of competent leadership at the local level.
AlanF