I can't think if any other game or sport that is legal that a person is penalized for being good at. Can anybody think of one?

If you are good at Golf, Bowling, Basketball, Poker, marbles etc. people are revered. If you are really good at Blackjack you are harassed, backed off and shown the door.

If there are certain types of players at the table that always follow the "book" and you do something different, you catch hell.