I wholeheartedly disagree.
People use this board to announce their ebay, clink, pedigree, etc, listings all the time; if I go through one of these outside venues to complete a deal, it's still a deal being done between two board members, which means that it's still relevant for the board to be informed if one party doesn't live up to their end of the deal.
I agree on both points. It is hard to make a call on an off board transaction without being able to see any evidence. But obviously since we can advertise our books here, we should still be held accountable for off forum transactions.