GadolH: In this case I disagree with you. The original letter from the OK that just said that this establishment was no longer certified by their agency. It did note use any code words at all. You believe that the OK should have stated their reason. In this case their may not be any real issue as it (IMO) is a sefek sfeika…did the worker use the oven and if yes was the food he put in their kosher or treif. Since the OK could not make a determination it just said we are no longer the certifying agency.
Based on what I have read, the owner used the “code words” personal reasons; the OK responded with the “code words” violating their protocols.