I've always wondered what would happen if you complained to the server and the manager on duty about the portion size. What if they delivered your meal and you said, "No. That is not worth $17. There use to be more food for the same price. Go bring me more food. I am not paying that much for that little." Would they say no? Would they offer something else? Would they not charge you? What if you refused to leave until they brought you an "adequate" portion of food, say, twice the amount of the honey chicken that we now see on that plate (which is actually the amount the used to give us.)
I'm not trying to start a war here, but I am curious if anyone has ever stood up for themselves in this regard. I've never come across a problem of small portions outside of WDW, except at four-star restaurants, but they are known for small portions over several courses. I firmly believe that if people only complain in an e-mail or letter to Disney Customer Service after their vacation, no changes will ever be made. But if you say something right then and there... What do you think the WDW restaurant would do?