Originally Posted by DawgmanOH

This. Let's take a hypothetical flight from SFO - MCO. There might be 16 FC seats. And I know that three of them are still available at T-24. And let's say we have two flights, Flight A where ten people have been upgraded and three paid. Flight B where one person has been upgraded and 12 paid.

Previously, I could tell that Flight A is far more likely for me to clear as most of the GS and 1K have already gone through the upgrade system. With three seats available, my odds are good. Flight B is not so good. If only one has been upgraded, I can usually assume 1 GS (or more) would be ahead of me. I would choose flight A over flight B.

Now, both flights looks the same. All I see is that there are three seats available with no way of knowing what has been run in the upgrade.

Is this the end of the world? No. Is it a step back from previous data? Yes.