I did have a werewolf dream one of the first nights.
I dreamed that Fordim voted for me out of the blue because I didn't like his new plans that he was trying to introduce. That made me very suspicious of him for voting on a whim like that & I had to make sure that I didn't let that suspicion creep into the real game based on a silly dream.
I don't see why I can't just dream "these three are the wolves, post as convincingly as you can & hang wisely."