Solid point. Another is the fact that 3 game and full season memberships aren't distinguished in those counts. It's nice to have a 'membership count' number for bragging, but it's hard to tell just how much it will benefit the club from the number shown.Personally think it's borderline pointless comparing membership numbers before and during the early part of the season.
Habits of signup have changed. Many more people are on monthly arrangements meaning they're counted earlier.
The only comparison that counts is that on finalisation day.