User blog comment:Wikiyous/The chance of the anime to continue on to Gun Gale Online/@comment-1173941-20121226212811

No no... see, during the time of SAO, the wall was used to list the names of all the players, and those who died had their name struck out by a line.

When ALO came around, the new Aincrad had that wall to show those who defeated a floor boss..