Originally Posted by BliztForever
How did they find out that 800 who died were Beta Testers? o.O
Did that tomb wall thingy wrote info about it when they died?
I think they did say that guide's info was provided by Beta Testers in ep 2.
Kirito asked Argo the Rat to go to the wall and she then compared the list of names to known beta testers. If I remember right she uses claw weapons in the books. She's also the one who made the guide.
Yes it did mention that the testers provided the info but it didn't mention that they also sacrificed their lives for it.