I knew a very devout "sister" who left a religion in order to become a JW. Sometime after her baptism, she began partaking of the memorial emblems, and she was immediately ostracized and virtually shunned--not at the KH, but socially. She was shunned by her former church and now by JWs. Just terrible!
JWs shunning other active JWs
If the congregations are all so different from each other, there's no sense to their claim that all the members are in unity.
And, I know that they ARE all different, and their boast of being unified is BOGUS.