But that was my point: speed runs are fun and often cheesy and score social karma. But only for people who care about them. Every other player can ignore them and focus on their own fun.

> The only real distinction between single-player games and multiplayer games in this manor is that in single-player games players can choose the 'category' they are currently playing, whereas in multiplayer it is chosen for them.

Yes. That's the distinction that matters.