''GOOD LUCK''
I quite like when an opponent says good luck before a game, imo it opens up a conversation during the game. The good game is simply a nice gesture at the end, but if it was not a good game I would not say it, in that case I would say exciting game or something like that.
... to me it is saying without the ''good luck'' I am not going to play well.
If I were no good without the help of luck, I'd be sensitive about it, too.
Why do players feel the need to wish another player ''good luck''when in fact they could not care less in fact when they go to play someone underneath they wish to crush this player.When was the last time you noticed a waring country wish another waring country good luck before they engaged in battle?
You only wish someone ''good luck'' because of your own insecurity