I suppose they could get the letters off, but then a bunch of us retired "Colonels" would complain that we have been demoted even more.

Other than thinking we are important, I can not see any value in membership in this club anymore. Maybe some employees see it and treat you just a little bit better.

As to finding any paper with the "Lifetime Crown Room" membership, not sure I would waste the time. After all, they can always change the rules, which of course they have.