Reality check: It's a dinner/breakfast/lunch reservation--and not even a real "reservation" at that--not a sacred vow. ANY "excuse" for not going, up to and including, "I don't feel like it," should be a valid reason for canceling or changing meal plans, particularly when you're on vacation. (Note that I said cancellation, not no show, though I am also someone who has been told by Disney employees there was "no need" to cancel reservations when I tried. Still, I agree it's basics manners to let someone know you won't be coming, even if that "someone" is a business.)
Disney, clearly, disagrees with my perspective. That's their right as a service provider. My right as a consumer, and what will happen in my case, is that I will eat even fewer Disney restaurant meals than I did previously ... And, based on their fairly dismal food quality, it was already pretty limited.
I just think it strange that most hotel stays can be cancelled, without penalty, up until the day of arrival and even high-end, high-demand, small-capacity restaurants outside Disney that require credit card holds, allow cancellations without penalty (no explanation required) up to a certain time on the day. (For most, that time is somewhere between 6 hours and 30 minutes in advance.) And those are at restaurants where the food is actually worth waiting for.
Any way you slice it, their entire restaurant model is decidedly unfriendly to the average customer. 180 day reservations mean way too much guesswork so, of course, people are making reservations they won't be able to keep. When they can get reservations (or even know to make them) at all, that is. Other than, say, Christmas, Thanksgiving or other major holiday meal, I can't think of any other circumstance where I know when, where and what I'll be eating six months in advance. (Heck, MOST people don't even plan their vacations six months in advance.) Silly; but if you don't play along and book up the even halfway decent eateries are unavailable.
Funny how when we went to
Disneyland we were able to book a sit down lunch at a popular place (basically any place we wanted to) three days in advance of our visit without issue. (And, at that point in our timeline, we had no question about where we'd be and when.) Hasn't seemed to hurt their business model as, when we showed up, there were lines out the door for every eatery in the park.