Quote:I will not reveal these lists to anyone during the course of the game, which is why they’re submitted over PM. Players may publicly reveal their own lists if they choose, but for strategic purposes, it may be best not to do so. Once these lists are made, you cannot change them, so choose wisely.
^ That's from the Challenges section.
DNK Lists only have two names.
For Challenge Lists, they must be made before the game and cannot change. However, I would not have a problem with being able to submit a DNK List during the game, or leaving one name blank and wait to fill it in. Once a name is on your list, though, it can't be changed.