It is not Bittrex's fault for trying to make the majority of the crypto community happy. Bittrex's responsibility is an exchange, and IS NOT a code checker.
The only defense against a rigged game is not to play. If the investors don't play miners don't make money. Bittrex can check the code and make it a fair game. Where there are winners and losers not just everyone loses. Why don't you want that bittrex? Are you the ones rigging the game?