So, you see a hidden book (in this internet age), so you view a "confidential" letter, so you record a meeting?
The Watchtower thinks they are entrusted with special communication that ultimately comes from God. Only special ones can be privy to the inner most holy of the Watchtower Society.
They obviously feel they have been enlightened by God & His Governing Body to demand whatever allegiance they feel is deserved.
Yet, quite simply, they are full of shit. They make their own rulings, their own determinations and own decrees. They make things up as they go along. They try to come across as "almost" inspired of God.
So who cares if they decide that something is confidential or not? They mean nothing.