Okay, on the first part, I understand. i.e., no more open bookings.
But the second part IMO is ludicrous. Let me see. You give them money and they decide in the FUTURE based upon the market, what your discount will be worth. In my opinion, discount benefits should be guaranteed, sort of like a "lockbox" that can't be raided by the cruiseline in the future. This proposed variable privatization, I mean "personal" discount savings plan is too dependent on the whims of the market. Oh well....
Maybe they can make a real exciting activity out of this, to follow trivia. They can construct a large spinning wheel like wheel of fortune with "0", "5" and "10" spaces. Anybody who books a future cruise on THAT day gets to play THAT day. Brian O'Brien, our most friendly on-board cruise consultant could emcee (great name for an emcee BTW!), and could have each contestant, er bookee, spin the wheel THAT day to determine their discount on their future cruise. "Step right up Sheri and spin...clack, clack, clack, claaaaack. "SOOO Sorry, my Sheri, but you get zilch. Who's next?" Doing it the same day you book would eliminate ADD (Anticipated Discount Disappointment). I have more to say but I lost my train of thought...
Bill