You failed in your "quote" to add this to the end of my link;
"But here's the risk: What happens if the card reader itself is counterfeit, modified, or infected by malware? In that case, you might find that your card info and PIN are recorded and intercepted by a third party. Of course, this is a potential problem for any kind of physical reader, as seen with ATM scam tactics."
The more people try and say that something is safe and then make misleading/edited quotes to support their claim that a potential scam is actually OK the more I suspect it!
YOU HAVE BEEN WARNED!