I know, I know, this entire DU / nadin situation is tragic. Nadin knows that the DUmp needs her wisdom, but she apparently won't come back until they beg her. The problem is that the DUmp is simply too stupid to know they need her (which is precisely why they need her) so they probably won't be begging any time soon.
Frankly, I feel that it is somewhat selfish on nadin's part. She knows she's more intelligent than the entire true DU membership combined so she should know that they're too stupid to realize they need her. What are they going to do when it gets near freezing and rains if she's not there to tell them not to go out in the rain? What will they do when (not IF) the windmill blades attack? Letting such ignorant individuals just hang in the wind...well...that be retardant.