"Banks used to flag an international purchase if it was fishy looking, like you used the card locally and there was not enough time to fly to wherever the purchase was tried, but I think that should be fixed in this day and age."

It is this part of your post I don't agree with. The 'used to flag' & "I think that should be fixed in this day & age."

No porn, no games.  It was from a large craft supplies on line store in the USA; I bought from them many times before.  🙂