Yes, it seems like our reservations used to just show up on MDE automatically, the dining reservations still do. I have been manually entering them when they aren't there. It makes no sense except that Disney IT stinks half the time.
Sadly, this whole planning nonsense IS "just going to Disney" these days. Like the planning is part of the "experience " and believe me we are paying for it. I know a lot of people love this part of it but like you, it makes my head hurt. I don't find it fun to decide 6 months in advance where we might want to eat, dictating where you need to be on a certain day, depending on the weather, etc. With the high crowds all year, ticket price increases, the tiered APs and what they are doing with DVC like cramming more people in a studio, higher direct prices, studios only at the Poly, etc, the magic is quickly fading for me.
I SO agree about the waste involved with the MB situation. The packaging of the mailings, sometimes multiple. That lovely 25 Year packet with really nothing in it except the new member cards. Most households got 2 of these BTW. Oh yeah, we pay for that stuff too as part of the experience. Giving you less for more seems to be the trend and it seems to be working for them.
Rant over.

Now I will go back to planning my next trip.