I was always careful not to participate in any "interservice ribbing" and to show respect to all service members. I know it happens a lot, but I know that each service member is vital to our security, therefore I always appreciated them all. In fact, I did one tour in SHAPE, Belgium and served with service members from all NATO countries. It opened my eyes in appreciation of other countries service members too.
You should see the fights my brothers and I had (one is Spec Ops/US Army, the other- a basic grunt, I - Bn Security Team/Co Sniper, former Tanker). Rivalry is part of a healthy spirit and pride you take in ones branch. Without any "ribbing", you lack pride. When you lack pride, your Drill Instructor failed you.
I see the letters CSM.
If that stands for what it usually stands for...you have my upmost respect.
It's all in good humor.
Thank you for stating the obvious...