FWIW, I honestly think most people are NOT disappointed at 7 months. We hear about those that are all the time, but those who get what they want do not post here at the same rate as those that are disappointed. IMO, we DIS posters tend to exaggerate 7 month issues.
Obviously, there are some times of the year where it is more difficult to get into the smaller DVC resorts and the "specialty" booking categories are definitely a challenge more often than not. But for those who aren't overly picky on booking category, there is virtually always some space at 7 months at all of the WDW resorts for most times of the year.
The early bird does get the worm!