Two comments. First, I think that perhaps digging up a whole list of old posts to be moved might be better done outside the Nodes to Consider framework. Even if you get a ton of people to agree that a post should be moved, nothing is going to happen until one of the gods comes by and moves the post by hand. I think it might make the gods' job easier if you collect a bunch of node IDs and group them by where they need to be moved to and let one of the gods do the whole batch at once (probably via Editor Requests).

Unless you think there will be some controversy over whether a post should be moved, I see no value in using Nodes to Consider for such things. If you aren't sure whether an old node should be move, then I say you should just leave it be rather than solicit a bunch of votes on the matter.

Second, I've seen several new nodes put under consideration saying they belong in another section. New nodes can be moved to a new section via the approval nodelet, so whoever is using Nodes to Consider for that needs to turn on their approval nodelet and use that instead. Sometimes a node gets approved to the wrong section and then can't be moved in this way. In that case, I suppose Nodes to Consider might be an appropriate place (though Editor Requests might be better since there is no "move" vote option and again, if the decision to move or not is not clear, then rather than vote on it, I'd rather just leave it be). A better option is for everyone to pay attention to the section a post is in before approving it.