@Swampwalker,
You are completely correct. People counterfeit S/N's all the time. The bad counterfeiters simply use the same one over and over making them easy to spot over time, but the good ones change them up.
The only way to truly authenticate products using S/N's is to have a corresponding database listing the owners and it's not very easy (almost impossible really) to reliably maintain something like this.
S/N's on products do very little to stop counterfeiting.
You are completely correct. People counterfeit S/N's all the time. The bad counterfeiters simply use the same one over and over making them easy to spot over time, but the good ones change them up.
The only way to truly authenticate products using S/N's is to have a corresponding database listing the owners and it's not very easy (almost impossible really) to reliably maintain something like this.
S/N's on products do very little to stop counterfeiting.