I think it's dumb to win by someone else's blunder. That's just an excuse so you can say "I won" and ignore the fact that you played a horrible game with lots of mistakes that you could have learned from.
So, your opponent blundered, you win, and therefore you played a horrible game with lots of mistakes? Whatever you say. I'll just remember to play really sloppily agaisnt you so you'll refuse to win.
I think it's dumb to win by someone else's blunder. That's just an excuse so you can say "I won" and ignore the fact that you played a horrible game with lots of mistakes that you could have learned from.