I actually have the 75k mile cards, but that thread is now closed so I'm posting over here.
I usually cut my minimum spends close to the bone, and thought I was over the $4k threshold but wasn't getting the points. I called Citi to complain, and they told me that the 3% foreign transaction fee DOES NOT count towards the minimum spend.
Luckily, the sum total of my foreign transaction fees was $150, and I still had time to spend on domestic purchases, but that strikes me as a little obnoxious. Not only do they charge you 3% if you use the card outside the US, but that 3% they are charging you doesn't count towards minimum spend.