Originally Posted by
ironmanjt
Datapoint: just got my confirmation from US for a UA ticketed/UA codeshare flight number on US metal.
Upgrade Status: Complimentary upgrades not offered
So, it appears they may have closed this loophole.
Follow-up: during online check-in it let me select seats in F for me and companion...go figure! When I started check-in it was still showing us in coach.