The Final Battle 7

This condition about 50% of games in round-robin tournaments should be known. We can discuss whether it's fair or not, and provide many examples, both for and against.

That's a strange rule. If a person has played 1 game, they can no longer be considered a DNS (Did Not Start). If it's not too much trouble, could you provide at least one example of someone who would be treated unfairly if everyone was given the win?