Nobody is scared, bro. You can't grade to CGC's standards. Very few of us could until we took the time to learn and study. When one has achieved a certain level of expertise there are only very subtle grade differences that will be applicable (unless something is completely missed - which I have done many times, usually water tide lines or staining).
So, you can continue to come off as a smug, caustic thumbsucker throwing his toys out of the pram, or you can learn how to grade. I'm pretty sure how it will turn out. Enjoy the toy throwing.