It can be annoying when you're at the food court and get behind a family on the DDP. It's like they're doing algebra or something! You forgot to carry the 1!! Quick, go grab a drink!!. Here I am with my little croissant waiting while they go get the rest of the food they're allowed. It's to the point where I think they need separate registers for those not on the DDP, like express lanes!!
As for the quality of food and service declining, I'm sure the DDP is a big reason. But I also wonder how much is just the economy?
As for the quality of food and service declining, I'm sure the DDP is a big reason. But I also wonder how much is just the economy?

Excluding appetizers and tips means we would likely end up paying MORE with DDP.
Who does that?!? Free food makes some people COMPLETELY irrational. Would those same people be irrational anyway? Probably. Would they be at WDW? Possibly, but perhaps NOT.
We are not tiny baubles and the child might have weighed 60 lbs. People just don't think.