Some post nominals can be as hard to earn as a degree. They don’t all come with time served and box tops. Some of them also require you to demonstrate continued competence and continuous professional development. Well some of mine did anyway. Others just required the presentation of a portfolio of competences and the passing of an exam. I had one professional body refuse an application so I sent them their membership list with a lots of names highlighted pointed out that I was the one that trained them, and they had been award the post nominal as a result of completing the training I had provided. Now I am retired, I don’t use any of them and most are lapsed so I would not be entitled anyway. Hands up though, I will admit to using one I still have if I think there is a chance of an upgrade - hasn’t worked yet though.