I wonder how much of the recent money grabs and suspected dwindling of donations relates to the disappearance of JWs like these. I would guess this is a bigger factor than the effect of litigation. Back in the 50's and 60's it seemed rather common for them to attract new members through door-to-door visits with middle class housewives, who probably were bored and welcomed visitors, had no internet to research the visitors, and liked the ready-made social network and even unconventional doctrines about paradise and pandas.
Then, in turn some of them would convince their husbands to join as well and of course raise their kids as JWs. I can think of two couples from where I grew up with no children who fit that mold. Both of the men had college degrees before they joined the WTS and the rumors were that both couples were relatively well-off and were leaving all their money to "the society." These people would be well into their 80's now if still alive.
I suspect that people like this (and like those involved in the court case, who may have even left family out of their estate planning) have accounted for a huge chunk of donations in years past. How many average Joe JWs dropping $20-$30 per month in the box does it take to equal one upper-middle class couple who leaves their entire estate to the WTS?
Most of these people have died off - those who convert more recently tend to be the less educated who haven't done the research about what this group is about, and the born-ins are rarely able to save up a nest egg after listening to the warnings against higher education and not working overtime in order to go door-knocking on the weekends.