First, there's no general public code out there for these times and
free dining.
Also, this is so last minute (next 90 days more or less) that the masses have probably used up their vacation times for 2008 already over the summer or they have plans set in stone for the Christmas season for family and such; so, they won't be going to Disney World in grooves for this offer, now. The offer is very selective on dates and with very few windows of opportunity for the offer.
There have been reports of pin codes with free dining offers before this offer even hit. Disney has done this one way or the other to fill up their resorts. It's good business practice and good marketing for slower times. There's no way Disney will rely on this 100% at any one time; because, that would not make good business sense. I do believe we are going to see this more and more; because, let's face it; the economy sucks, right now.
You probably have all your dinner reservations, already; so, you will not be affected by going to your favorite places to eat. If you haven't done any planning yet then I would do so, now.
You can always modify your times without penalty and change your reservation if this is bugging you to the point of no return. Cancelling is the only time you can lose to a certain degree.
I'm sorry that the
free dining offer will make it a little busier, but by no means do I believe it will be significant, here.