... I think you're confusing people's paranoid desire to book day-by-day at 11 months with a true NEED to do so. Just because you read reports of a few people calling day-by-day for January (or April, or July) doesn't mean that people who wait until 10 months out are being told there is nothing available...
...Regardless of what happens there, I don't see any great movement toward manic 11-month bookings other than the oft-cited examples (early-December, Food & Wine fest time). That means there WILL continue to be rooms available at 7 months and those who are most prepared to take advantage of the openings will benefit.
As discussed, there is probably a true need now to book day-by-day at 11 months for only certain resorts or point categories at specific times of the year. The perception of the need to book day-by-day at 11 months for other resorts at other times may be driven, in part, by the general discussions of hard-to-get reservations, specific waitlist problems, and a heightened sense of paranoid or neurotic behavior that WDW travel seems to engender. The analogy that came to mind while reading this thread is that of booking ADRs 190 days in advance. Other analogies that may be appropriate are the quest for the perfect room view or the perfect parade viewing spot. The relevance of this with respect to a DVC reservation discussion is a question of whether DVC's sales success in California and/or the possible addition of other options in California and/or Hawaii will significantly change the nature and behavior of membership, thus changing either the perception of booking needs or actual booking behavior. My opinion is that an influx of West Coast members could at least partially affect the factors discussed in this thread at the margin, but that is only my opinion. BTW, my view of the waitlist is the same as yours.