[Idea] Next Move Bets

This just came to me a moment ago, in a match where my opponent did the exact same move I thought he would do. What about a system that, after submitting your move in a match, let you "make a guess" about what your opponent is going to do in his next turn? You could bet a taunt, and if your opponent does the exact same move you predicted, you would win 5 taunts or something like that.
 
It would be something fun to do with taunts, that right now a lot of people just hoard (I have 1058 taunts right now, and that number is increasing slowly because some people find it annoying when you taunt them after a cool move.). This would also help in giving something fun to do when none of your opponents have taken their turn, like challenges, but challenges stop helping when you complete them all.
 
This would probably be too hard to implement to be worth it, but I would like to see what others think about this :P