The information freely available on the net is their Achilles' heel.
GB don't "want" people to leave. (Just like an abusive father/husband doesn't want his enabling wife and kids to leave) They want people to "shape up" to their man made self serving rules and standards. But increasingly people don't want to and see less reason why they should as all the promises made have been overtaken by time.
So the GB try to guilt trip, bully and scare them into staying. Increasingly stridently so this year with their "loyalty" message. And they portray Jehovah as an abusive heavenly father as they have made him in their own abusive, controlling image.