A JW cannot (as per WTS policy) be DFd simply for getting a separation or divorce. The only basis for DFing would be if there was a remarriage without fornication as grounds for the divorce.The issue about "Scriptural" separations has only to do with 1) whether a brother will continue to be used in an "exemplary" way; 2) whether the departing brother or sister can expect to have the support of the congregation (perhaps including financial aid).But, as Euph says, this is all about policy; as in ozzie's other thread "We don't makes rules beyond what the Bible says."
Craig
Craig