I got asked an interesting question: what were Riza and Vincent like, in a general stat-wise kind of way, before they vanished? My own notes are kinda sparse here, since I was more concerned with the present, but the past is something that would have been known to the other player characters of the day. At the very least, their strongest point (and any hugely obvious weakness) would be known. So I'll go with what I have in mind so far and let the actual players for Riza and Vincent fill in details:

Riza: Warfare was one of her primary stats. She was competitive with Nityana, but lost to her. It wasn't fatal, so she might have been 3rd rank, might have since forged ahead to 2nd if she spent more on Warfare and Nityana didn't keep pace.

Vincent: used to pal around with Desmond. Had more than decent Psyche and Warfare, though it's hard to put the Psyche into perspective (many of our top scorers in the auction were born after Vincent's disappearance).

Both have had much time to change, and vanished so long ago that their contemporaries also had time to change before the game started. The mystery of their present day stats may not mean much, since the public auction results are, what, 10-15 points out of date now?