the ebay sellers are doing it..
you can go search for film on ilt right now and youll find a good number of people are opening cans up, and then taking a photo of the contents... and then demanding 350$ for that partial roll of Silvermax
Not the ones I purchased that were open by customs. If it had been done by the sellers, I would not have bought it - nor would I have mentioned it.
Everyone has seen the photos of both film and paper exposed to daylight on eBay.