I've noticed that a lot of news articles tend to take a few examples of something outrageous, but never say anything about how widespread the practice is. I find it hard to be outraged or care unless there is some quantification of the problem. In any system, people will find a way to cheat.
Amazon is aware and maybe they are working on a way to fix this, but it's not clear Amazon has had much time to figure out what to do. Even if you think Amazon is evil and doesn't care, it takes time to figure out how to defeat this. Maybe they won't care, but at least give them some time to respond.