if you just ignore people with a different view to yours, you might miss something with your bias., it's wise to consider it. so many rookies just torch other people with other view points. when money is on the line, people get emotional, I get it. the best investors and traders control their emotions.
on another note, got an email from AMEX, see below.
as I expected, other card vendors might develop their own technology. I wonder if MasterCard/visa will buy SPT's tech, or whether they'll just start their own.