Having been a member of a very Calvinistic church at one time, the inside joke did not escape my attention. My comments were for those who may not understand the Biblical interpretation of the word 'perfect'. As you may know, the best humor - especially those associated with sterotypes - always contains at least a small element of truth. At least you have a sense of humor about the whole thing.
I doubt that, seriously. That is due to the fact that the joke has nothing to do with Calvinism, and would not have been made known to you by belonging to any church, Calvinistic or otherwise. The inside joke is one known only to a small group of us Calvinists here on FreeRepublic.
However, if it makes you feel better to think that you are "in the know" I probably shouldn't burst your bubble. It might damage your PMA.