I just resigned a game (Play Go at online-go.com! | OGS) and wanted to look at the corresponding tournament page. But no link was shown on the game page. By coincidence I still had the tournament URL (https://online-go.com/tournament/43034), but that gives a not found error.
Is there some bug or can there be a legitimate reason for a tournament to disappear? Just imagine this would happen to the through the years tournament after a few decades!!!