It deters people. New people. It also makes the recaster lose money. He was expecting to make x amount but if more people know, less will buy.
Imagine buying a ferrari. You spent so much money because you value the actual worksmanship, time, labor spent into it. Now imagine someone near to you bought a replica of it for a tenth of the price. It could look almost like yours but still isnt a ferrari. Wouldnt you be upset?
Im not trying to argue with you because i agree with you. But its just an analogy.