Kate, YAHOO doesn't decide. The person asking the question can select the answer he/she likes best or leave it to be voted on by participants.
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It seems most JWs have a clear disconnect when it comes to the disfellowshipping/shunning matter. When they hear "disfellowship/shun", their minds automatically go directly to "unrepentant fornication, adultery, theft, lying, etc..." There does not seem to be a mental pathway that allows them to hear, "doctrinal questions, conscientious objection or peaceful exit."