Okay, but I still don't understand the difference between scrolling though some master list or scrolling through the last post that someone made. Either way, you're scrolling through a long list.
The editing of who's turn it is next is a courtesy, usually you should be able to figure out who's turn it is by the last post (except when Lythand doesn't quote). But even then, you should be reading the thread anyway so you know he drafted and it's someone else's turn.
And there's still the problem of everyone editing the master list. Yeah, the person who posted the list can edit it, but then you need to wait for him to update the list if you want to see all of the cards and you're back to the same problem of not seeing an up-to-date master list.
So the current way, you quote and edit in your picks and the next turn.
The proposed way, you post your pick, then go back and edit the master list (assuming the edit problems are resolved)
The current way is slightly cumbersome, true, but I don't see any improvement on the proposed way, but I could be missing something...