JWs may have gone wrong in some dates and silly details. But their core teaching remains not only UNCHALLENGED and UNCHANGEABLE
Lol, You miss the point.
God is truth. God cannot Lie, thus jehovahs appointed and anointed ones must be pure and holy to fit the logic behind the core teachings.
Charles Taze Russel was not holy, he had a mistress and screwed the house girl it seems. He was divorced by his wife.
His appointed successors to take over when he died were kicked out on their butts by a man seeking power. have you checked the record of these events?.
Early Dates given were taken from other religons ideas and simply add to.
Additional dates were arrived at via Russels Pagan beliefs of Pryamid measurements.
What core teachings could you possibly excuse as unchanable since all the teachings of the Organisation you know continually see saw back and forth.
Now you are ruled by an elite group that display pinky rings as a status symbol of whom you worship.
WAKE UP you are in dream land