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leon30: It seems it also gives "Paid with free order" when one uses PayPal.
I also have that on credit card orders from before August 2014. I believe that was the point in time when they enabled paying in additional currencies (my first credit card order that displays properly is in € instead of $), so I guess they started logging transactions differently at that point.
Interesting question. Do *YOU* want to see it? The correct question should have been, do you want your *SPOUSE* to see it? :)