If I'm thinking of he right app, last time it was released it said it disables some 2nd security thing that cracked AppStore apps have.
Then after a little bit of googling, it turns out it actually deleted your cracked apps.
No, I'm not trying to bring warez into here, I'm just trying to educate him.
Brick mode became a nonissue around 2.* or sooner far as i remember. So no you don't need it. You're quite safe if you've made it past the pwnage process.