I believe the coin date, questions about listing and closing of listing demonstrate some serious authenticity issues... http://www.ebay.ca/itm/POLAND-1932-...CULATED-EXTRA-RARE-/311013748307?#description
EVERY collector, every dealer is a "self-slabber" when you write the grade on a 2x2, give it an attribution, and guess a price. Judge for yourself. You are responsible for your evaluations. Period.
Your point is hardly worth disputing. However, the subjects of this discussion are going much further with somewhat professional packaging that belies the validity of their assigned grades.