All the above post are very good and show the strength of feeling that exists towards the WT. This is mixed with a conflict, caused by the fact that many JWs are sincere people trying to do whats they feel is right. They are not a bunch of no-goods, just people who have been mislead.
Jehovah's Witnesses believe that there is a universal court case going on to settle the issue of God's right to rule the earth. The issue is one of universal sovereignty. They claim to be God's witnesses in the court case, appointed by him, to put forward his side of the debate.
If this were a case held even in an imperfect human court, how many times could such witnesses make false statements and claims before their honesty was called into question? How many failed promises and false dates could be entered into the court record before the witnesses were discredited and their testimony considered inadmissible? At what point would the judge conclude that such unreliable testimony was damaging to the case, and such witnesses were actually harming the reputation of the one they were claiming to support?
However well intended the efforts of witnesses in a court case, their testimony has to be truthful and unchanging. It cannot be altered and embellished as the case progresses. It is not enough for the witnesses to say that they meant well and were trying to help. No just court can tolerate such mischief. How well have Jehovah's Witnesses presented their testimony and has it helped the cause of the one they claim has sent them to testify?
They need to honestly recognize that their activity does not bring glory to the God who's name they carry.