They've been getting enough complaints about players being kicked for trolling and returning immediately that I think they'll do something sooner or later. I hope so anyway (though thankfully it's never happened to me).

As for food, yeah it doesn't add a lot of stats and can be kind of pricey, but eventually (probably post 50) you'll have money to burn and the cost of food will seem trivial. Generally people only use it for raids (or high end crafting).