So, is it true that ex -Jehovah's witnesses were so gullible to be Brainwashed into believeing the world was?

gonna end in 1975. And their anger is because their caregivers let them vent their ignorance online? every time i see an ex-JW who hates dubs, I laugh, cause they are fools, they thought the world was gonna end in 75 and were scared by dubs. LOL well, why should anyone listen to them now? they admit they are stupid.like 2012 ers. they probably now believe that too, and will have to get mad at the ones saying it too, just to prove how stupid they really are.