I haven't been successful yet but the understanding is that the card is unlocked, you know what it is, and you can choose to get it sent to you. Obviously, a 1992 Topps of Scott Erickson isn't likely going to be physically redeemed but I would be interested in anything older than 1980!
Condition could be a mystery.
I don't think it's a scam (not yet). It could be interesting!