In the past, chess was a game almost for serious people, like Dr. Lasker or Dr. Tarrasch. But today a lot of rude, arrogant people play chess. Why?
In life, like attracts like.
As opposed to all those polite people like Alekhine, Nimzovitch, stienitz, or Staunton?
Why can't we be more like them?
(I guess theose nice folks quit coming, when they learned they were not allowed to smoke in the tournaments anymore. Now we're stuck with the non-smoking buttheads.)
BAD NEWS DEPT/REALITY CHECK TIME: Dr Tarrasch was a rude, arrogant and obnoxious asshole. Howard Staunton and lots of other "serious people" who you either never heard of or don't know anything about were also rude, arrogant chess players. And how do you know that the "rank-and-file chessplayers are anymore rude and arrogant (as a whole) than players from any other century?
Taken at face value, the OP's contention is that in the past, all chess players were well mannered and always behaved properly. In reality, ill-mannered people have existed since the beginning of time, and the game of chess has had it share of people whose public behavior occasionally left much to be desired.
Agreed. I just wanted to point out that, in my opinion, there's nothing wrong with a person taking out their frustration on an object that feels no pain. There are rude and arrogant people in every walk of life. I'm guessing many of them would be far more polite if they thought their behavior would cause a lethal weapon to take out his anger on them rather than on a nearby chair.