I believe (without clear evidence) that the theory for the card is that it is an incentive to get the specialties. I do know (based on an article I read years ago) that the model for the system was the Boy Scout merit badge system. If you get 5 merit badges, you become a Star Scout. You advance through other ranks the same way. Some merit badges are required, but most are up to the interests of the person seeking the merit badges.
I am also one of those who believe the card would have more benefit and would be even more popular if there were valuable advanced skills and knowledge required to achieve it.
I am also one of those who believe the card would have more benefit and would be even more popular if there were valuable advanced skills and knowledge required to achieve it.