The G.B.used to say that the annointed numbers would fall as the end got nearer pre the year`s 1890`s- 2000`s.
For about 30-40 years the numbers of the annointed never went below 8000 ,it was pretty stagnant for all that time
Then after the year 2000 the numbers of the annointed have started going up to where they are today at about 18-20000 , the official version to explain this has been to say they are either new or they are not mentally stable .?
If they are" new" then the WT is obviously not doing a good job in training new ones about the "truth" and their role in the congregation.
If they are mentally unstable ? what does that tell you about the organization apart from the fact they are still lax in educating properly the role of a JW in the congregation .
My belief for the reason of such an increase by long time JW`s is because they are sick and tired of the continued delay of Armageddon and they are cutting their losses and not relying on a time frame but know that when they die whenever that is they will get a heavenly resurrection.
Simply put the vast majority have lost faith in Armageddon being just around the corner they have come to the realization they will most likely die before Armageddon comes ,so being one of the anointed gives them security they will be resurrected to heaven.