If I have mentioned this before, I apologize. I used to work in mental health, and one of my coworkers had just completed her MSW, and was trying to start a counseling practice.
She was showing is all the paperwork she had: lease for an office, her yellow pages ad, business cards, and a male coworker said, "Wow, you are a certified Substance Abuse Counselor? How long did that take you?"
She looked confused. "Well, I have my MSW, and that took --."
"No, I mean all the specialized courses, classes, and the practicum that you have to have to be a certified Substance Abuse Counselor."
Well, she wasn't one. She had her master's in Social Work, and she always wanted to specialize in Substance Abuse, and she thought that was all that was needed. The male CW had a substantial background in substance abuse, and he explained that the specialty she was claiming was a BIG DEAL. It was almost the equivalent of listing PhD after your name because you thought it looked cool.
I don't know what she did with the cards. Those had already been paid for. Knowing her, she could well have handed them out, reasoning that most people wouldn't know.