Capable of Learning from "the Polaroids"?

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David Gill posts a question on his 'Looting Matters' blog about the polaroid images which have been seized in Geneva and Basel and which reveal that various items were in the hands of certain now-infamous Swiss-based middlemen. He points out that museums may well have 'learnt the lesson', but asks whether private collectors and dealers catering for the private collectors' market may still be pressing on with commerce in objects which may be suspected (or known) to have passed through these hands.
A number of sales are forthcoming. What will emerge?
I have a feeling that it will emerge that antiquity collectors are slow learners and we might be hearing on LM about a few more private collectors with objects to sell anonymously hoping nobody is going to catch them out. It's not a question who has access to which polaroids, it is about who has bought what without enquiring too deeply about where it actually came from, and who is about to buy stuff with the same lack of diligence and care.