WWG, The lile dot scam, that I've witnessed, is passing off a knife as made by Jimmy when it is obviously made after his death. It's particularly successful with new collectors who know the Rambo knifemaker but don't know his knives. I've witnessed it twice and at least once someone has used these forums to find out after the purchase what they actually bought.
When it comes to Jimmy's knives, I don't know how many times knives made in his shop (when we all know they weren't sole authorship) have been marketed as been "personally made by Jimmy". In addition, the most recent "widow chasing" story I've encourntered (last year) concerned one of Jimmy's hunting companions who passed away and was known to have a unique knife. Two forum members wanted that piece.
I am sure many collectors consider themselves honorable and act that way...up to a point. However, IMHO just by the nature of collecting, greed and lust come to play, and these are potent negative forces. But, as I said before, I stand corrected, obviously custom collectors have the POWER to maintain their integrity.