Why is this just about pente? Dmitri is using pente as an example as its the game he plays most often, but it applies to all games.
Should an opponent resign when they have obviously lost, or carry on to the end?
I personally find it difficult to decide. In games like checkers I've had one king left, and my opponent 4 kings, and I've had a lucky break and gone on to win. So I rarely resign a checkers game now.
But how about backgammon if you have 200 points left and your opponenet less than 50? Its impossible to catch up. but if I resign I feel like I'm taking away that persons 'winning' move, the satisfaction of moving out that last piece.
In situations like that I often ask the person I'm playing if they'd like me to resign.
In chess, I like to play to the end because theres always room for error. I believe theres no right and wrong answer here. I'd like it if my opponenet asked me to resign if I'd obviously lost and not noticed, especially on games I'm not familiar with like pente!
Its really down to the individual what they prefer.
But if someone said to me 'lousy game' I would be highly offended! Even Dmitri offered me a 'gg' when I KNEW I'd played terribly!! It was one of the first games of pente I'd EVER played and didn't really know what I was doing, but he was a gent about my losing miserably!!
Even just say 'thanks for the game' if you feel you can't bring yourself to say 'gg'.. theres never any need for rudeness.