It's a lot easier to accept the wackiness when you are convinced the WTS has the truth. And even moreso if you are raised a JW, which means you only know their interpretation (and have been conditioned to reject any other interpretation). Because JWs are forbidden to question the GB's interpretation, it can be tough to entertain any doubts. And even when you have doubts, you worry that maybe it's you.
But the further you get from the mindset that they cannot be wrong, the easier it is to spot the odd statements and teachings. And some of the things they say are outrageous enough that even a loyal JW feels a bit uncomfortable when they read it. That was where the doubts began for me-- one or two statements in the magazines that I tried to accept, but they nagged me.