No joke, I'm actually holding onto the additional candies I got. I'm too scared for the devs to pull another middlefinger and actually tell us next step that you can use them for whatever devilish thing they would come up with. The player outrage would be colossal, but I still don't trust them one bit.
And in the case they actually do listen to your ideas for exchanging them, which I do appreciate, then keeping my useless candies will be sound anyway.