Not raiding for food. Raiding and getting food becomes a thing. Right now, food from a raid is only important if you have everything to make it work in a session. Otherwise it is basically useless. You would still have to make a LOT of food with the craving system, but you would not have to make 500 of the exact same item. You would be gathering and foraging and growing to make every single food in the game for a perfect session. It would make advanced cooking an actual thing to rush towards on new expeditions and something you would need to make all foods and feast on every little item. Extra things like little buffs could come into play so that when you crave a hard item to make, and you have one to glutton, you get a buff along with the point. Making the whole system much more diverse than 'eat moar beaver'.
I'm not saying it is a thing or even JC's idea, but how nice would it be to also get the Berry Juice buff from eating a hard to make Berry item? Or getting the Honey buff from eating an item with honey as an ingredient. Or getting maybe a Feral Defense buff for eating something with Deer meat? Right now it doesn't work because you'd eat 50 of any single item. Cravings would bring more variety to gameplay, not take it away. If you enjoy cooking 1000 of the same food, I don't know what to tell you.
A perfect large gluttony session would consist of preparing at least one of every single food item in the game and carrying it. That is some work - offset by the fact that you didn't have to make 1000 of any one item. So you get a point no matter your humour level for each successfully matched food. And when you crave something you don't have, the session ends when you eat something else or right-click to cancel gluttony mode.
Everything works exactly the same except you don't have to make 1000 of the same food item. Dedicated cooks who prep entire tables of food for you become much more valued for their care in making sure you have every item available. Alts who cannot carry as much weight will be limited. So much good comes from this.