Originally Posted by
AirbusFan2B
Several of these anecdotes of arbitrarily auctioning off upgrades may be an unfortunate outcome of the incompetent Shares reservation system United inherited from Continental. The hole notion of hauling somebody up front from coach when already seated an stowed is lame. Never saw that happen on pmUA - that system had everything completed by the time of boarding.
Nothing to do with SHARES, you have to account for no-shows in F which can't happen before boarding, yada yada...