Disney world has has had blackout dates on their annual pass for years.
Only on the FL resident passes, which I believe aren't called APs, but Season Passes.
Locals who have premium annual passes love Disney too. They have just as much right to enjoy the Park as you do. They paid (a LOT) for their AP.
By the way, they are not the only ones coming into the Parks after 5pm. When do you think all the tourists who choose to go back to their hotels for mid-afternoon naps come back to the Park?
Let's not blame the locals for everything. They are just enjoying the use of the pass that they bought.
- Dreams
Exactly. I'm not local, but I have no annoyance for locals who go often. Not at all!
Blockout dates are for when the park is already going to be busy. With tourists. They don't want to make it worse, so they block the lower levels of APs (all 3 of 4 levels, including the Deluxe AP I have, have various blockout dates) at varying levels, so the only massive crowds are made up of tourists with normal tickets, or Premium and Premier AP holders.
And since locals can buy Premium and Premier APs, you have NO idea if the people you see using APs are locals or if they are from Iceland.
Ofcourse AP holders have every right to go as me. They just get to do it alot more and for a lot less

. I don't have any statistical data, but based on my own experience, Disneyland reaches peak attendance in the evening. In comparison Disney World reaches peak attendance mid day and thins out after 5pm. There are just more people in the LA area that swing by after work. Christmas time was the most obvious. Nobody there until the evening, then it was horribly crowded. The next day...poof, everyone was gone again until that night.
I don't read the crowd levels the same way you do, not at all. People simply don't like to wake up early on vacation, and don't understand how much you can get done in those early hours. Let's LET THEM continue to do that!

It allows the early risers to have that quiet time.
It's the same at WDW, though, just on a different scale since there are SO many more people there. Starts off slower, gets more packed as the day goes on.
The AP holders who are doing it more cheaply are the ones with very blocked years. Those who can go much more often are paying just what you can, if you were to buy an AP (deluxe, premium, or premier).