I can't say that I have ever gotten anything counterfeit from Amazon. What I have been victim to is no name garbage that has 4.5 stars due to thousands of fake reviews. Generally it is stuff that is difficult to research good brands and the review websites often simply redirect back to Amazon. It's also very little use leaving a bad review because Amazon will remove it. For an example, Louis Rossman bought some fuses on Amazon. The 2A fuse did not blow until 10A was passed through it. That was not a fluke either. He left bad ratings which were removed and those products continue to be sold on Amazon. That is shit easily that can start a fire. If there actually was blow back, the manufacturer would simply stop selling that named version but keep the half a dozen other identical ones up they use to flood the results. So while this may not have ever been an issue for you, it can easily get someone killed. Your conclusion is spot on. We need regulation for this garbage. While Walmart is generally seen as garbage, there is at least someone responsible for purchasing shit to put in the stores and they generally have it tested. That is not the case for Amazon or Walmart's online marketplace or AliBaba.