Duh, ok. I just heard half-truths and plain FUD from coinfire, so I stopped reading them & put in the pile of horseshit never to touch category.
ZincSave was the company purchased (which breaks amazon's TOS)
There are other sources or you can just read the merchants TOS yourself and figure it out if you cared about the truth.
Or just use some common sense and realize that merchants aren't happy that clients can be directed to their competitor or lose a sale with this plugin.
But a cryptocurrency can not be a ponzi scheme.
It's not that complicated. A company- GAW, can use a cryptocurrency as a vehicle to orchestrate a ponzi. In this case, continue one being that they likely have a history of fractional reserve mining which is a form of a cryptocurrency ponzi.