Here are some good reasons not to hack.

 PAY CLOSE ATTENTION!!!!!!

NO.1: If you hack club penguin, you immediately become a criminal!!!! IT IS ILLEGAL TO HACK WEBSITES! AND AGAINST CLUB PENGUIN RULES! Also, you will be able to steal a membership! You will be a thief!

NO.2: If you had a paid membership, and you get banned permanently, THERE GOES YOUR MONEY!!! NO REFUNDS!!!! NO EXCHANGE!!! 

NO.3: if you hack, you will lose all your progress! You wont be a tour guide, you wont be an agent, you will lose your penguins clothing, AND YOUR BUDDY LIST WILL BE EMPTY!

NO.4: If you get banned for hacking, You won't be on club penguins side anymore! You used to be a good penguin, but now, YOU ARE A BAD PENGUIN!

NO.5 It just isn't nice. Club penguin doesn't like it, and it will be unfair to the other players if you have free items, and they don't!