I can see that. A decent rule of thumb might be: if the misinformation would change what players do, then it's probably bad. E.g. if one villager said the mir

I can see that. A decent rule of thumb might be: if the misinformation would change what players do, then it's probably bad. E.g. if one villager said the mirror is in the swamp, unlucky players might waste a lot of time in the swamp, which is bad. But saying it's an axe vs a sword vs a piece of armor vs a potion probably doesn't matter much - whatever it is, as long as it is what is required to defeat the dragon, it's fine.