Will the court visit the old version "This card is not for identification puposes"?
For identification purposes, the person presenting the card cannot be securely identified with the card alone. That doesn’t negate the truth that the Social Security number represents you to the government. It is your sole number, not assigned to another person on the planet.
If someone uses it, they are in effect saying they are you. They have stolen you identity at that point. They are passing themselves off as you, even if they don’t use your name in the process (IMO). That number stands on it’s own.