This will lead to more counterfeits trust me. The only people that this is going to get rid of are sellers who have been selling on Amazon for years and have good track records. The counterfeiters will bribe their way in and now get higher prices because the honest competition will be gone. This is something that should have been done with notice and should have been done in months before and not in the holiday season as many sellers have been stocking all year for this time.
I can only imagine the sellers who do FBA and what they are going through right now.