So I was on a flight from MSP-ORD (NW186) and a flight ORD-DTW (NW534) where I got off the plane (at ORD), and then reboarded the same exact plane. Because it was a different flight number, I received 1000 miles, 2 segments. The ORD-DTW flight was actually continuing on to LGA (NW534), but there was an aircraft change. We arrived at A66, and LGA flight left out of A18 (in Detroit). I feel for you travelers that get shortchanged and lose miles on this deal. I don't understand the meaning of direct if you have to change planes (and haul butt all the way to the other end of the terminal).