I am my Father's POA (Power of Attorney). Over 5 years ago, I took over my Dad's finances. He had been giving the Borg tens of thousands of dollars every year! (and nothing to his grand kids btw).
ALL of that came to a screeching halt when I took over. Botchtower has received nothing from him since that time. If more and more older ones who were giving substantial donations are no longer doing this, it must be taking a toll on their financial situation. Add in the lawsuits and the recruitment from poorer countries and the money just isn't there any longer.
I suspect their financial models have been somewhat irresponsible as well. When you think the end of the world is coming imminently, why would you need to be frugal?
It all adds up to financial downfall.
But if this is God's organization, why isn't he ensuring their financial well being? And isn't money the root of all evil? Just one more thing that made me wonder about the whole money/religion thing (back then they used to charge a subscription fee for the ragazines).