The GB are talking about themselves when they say this. How do they know that some who claim they are anointed only do so because they have mental or emotional problems? They themselves are doing the judging by claiming so.
What really bothers me is when they quote scripture and say that God knows those that belong to him because they are saying that most jws and every other Christian don't.
One week they say it's not important to know who are anointed and the next week they say that your salvation depends upon supporting the anointed.