Technically you should not use it that way. I still see it used from time to time without permission. I believe it's copy written and any unauthorized use of it might be construed as an endorsement of your work. Your rank, whether JS, MS, or Apprentice Smith, is very much permitted.

I am open to correction, but that is the way I remember the general answer given a few years back to the same question.

Thanks for the reply Lin, I figured it would be frowned upon but was deciding card designs with my printer and they thought it might be good. I wanted to check and be certain before using any organization on a private advertisement