About Valkyrie Profile 2 cheat codes

[Nobody]

This is a quote from CodeTwink Network - Valkyrie Profile 2-Silmeria (PS2
Cheats)
Underneath the quote are my questions.

NOTE: THIS GAME IS HIGHLY PROTECTED AGAINST CHEATING
So what does this mean to you, the user?

1) It means that these are most likely CMGSCCC.com Exclusive cheats as the
most skilled hackers here at CMGSCCC bring you the goods.

2) It means that some of these codes may cause undesired effects and/or hang
the game at various spots in the game.

3) It means you should probably save to different slots and backup your
gamesave to USB Flash Device often as we can not guarantee that some
gamesaves may not become corrupt.

4) It's recommended to activate the cheats you want, save your game to a
different slot, and then restart the game without Code Breaker for now while
the codes are in testing.

-CMX

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Now, here are my questions:

1) How?

2) Why?

Thank you very much for your help in this matter.

Best Regards,
Bill N.
I-Con Science Fiction, Inc.
20 Peachtree Ct.
Suite 103J
Holbrook, NY 11741