Curious to hear the board's take on this. Yesterday flew a UAX flight to DEN and my wife & I were #1 and #2 on the waitlist with 1 seat available. I got the upgrade -- but then declined so I could sit in E+ with wife (row 7 on the 175 has more legroom than F, so not bad).

Anyway - there was another 15 people on the upgrade list; but FA approaches another 1K who was behind us to offer upgrade; she declines because of spouse... and then the flight takes off with 2 seats available in F (very odd - not next to one another, but across). I almost said something, but obviously mid-flight not going to ask folks to move around, but I was very confused as to how on the WL with 15+ people, no one was moved up -- and I'm assuming we weren't approached since I declined, but also felt like since we were #1 and #2 on WL, we would have both been given the UG.

I'd never seen this happen before - so chalked it up to the GA and FA's inexperience. But how could that have happened?