I think we should keep the score of game54 because it existed after all.
I'd be agree with you if the chart still exists. But now, there's no more "Survival mode" so even for him there's no way to play this chart again. In my mind, there's no sense of keeping scores of removed charts.
For this game, the "Survival" mode have been removed since 2 major versions, which means, I think, it was volunatry to remove and replace it by the "Time attack" mode.
I read game54 didn't go on VGR since months and when I tried to send him an email to his email address he has on VGR, I was soft bounded... xdman, can we proceed on completly refactor the game or do you still want to wait game54 information?