I only lost 24 points (granted, I just found out about a week ago); but I was just issued a $10 cert yesterday, so I'm glad I only lost 24.
However, I still have 155 pending points (from purchases) that were supposed to be available a couple days ago; they're still pending. I doubt I'd lose those, so I'm interested to see what happens in a couple weeks...
EDIT: Interesting, in the FAQ, it says: "At the beginning of every calendar year, the points in your account (except Premier Silver members and Reward Zone Gamers Club Unlocked members) will be issued as reward certificates down to the $5 level, and any remaining points will be forfeited.
You will begin getting points for the new calendar year on January 1. For example, if you have 300 points, you will receive a $5 reward certificate (250 points) and you will forfeit 50 points."
I checked my status, and I'm Premier Silver (whatever that means - I only just started shopping at BB again last year), so shouldn't my points have NOT expired? (I know the ones from December carried over...)
EDIT 2: Ah. Looks like everyone was upgraded to Premier Silver.