The blame should be put squarely on the shoulders of tophatter.com. They know the quality of what is being sold and choose to look the other way for the sake of making commission and sales fees on these imitation goods. In my estimation and also the interpretation of the law this is outright FRAUD.
Inverse operations are opposite operations that undo each other. Addition and subtraction are inverse operations. Multiplication and division are inverse operations.
Techopedia explains Obfuscation. Common reverse engineering techniques rely on function and code clarity when copying program code. Obfuscation creates ambiguous code, which makes reverse engineering difficult. Slicing is the most common technique used for resolving obfuscated program mysteries, where portions of code are analyzed and simplified to determine program functionality.