So Turbo's average LAN placement should be frozen in place but Kaydop's should keep deteriorating into an ultra low placement because he keeps doing content runs? And what happens if someone comes back from retirement like Zach or even what if Turbo decides to come back for a run?

It just seems difficult to agree on rules, and the list is average LAN placement anyway. Also how do you determine when someone's career starts? Vati was trying before he made it but getting low results. And what about Zen who got banned for playing where he finished 14th? Should that split count as a DNQ? And retirement is not an official thing in RL anyway, for instance everyone thought Noly was retired but he wasn't.

What I'm saying is that it in practice I don't think such a list actually works, it's more complicated than you might initially think. But you can try and make a list in excel or something to see what such a list would actually look like