Why the Secret Spell Scroll system would have never worked.

An excellent meso sink would be the introduction of cubes, hammers, and other cash shop essentials as in-game drops. The massive wealth required to self cube equips, coupled with everyone's intense desire to be powerful, is what drives many to just give in to duping. Another idea would be to have certain NPCs sell mastery books. There's no reason why a player should have to pay 500+ mil for a mastery book.

In my opinion, the roll back is not going to happen. There are far too many simpler ways they can solve this issue and the game has been up and running way too long2. Before anyone argues that they've done it before and will do it again, just remember the last time they did nobody could log in to begin with.

Then they'd get duped, rendering it worse off than before. At least right now cubes/hammers/wards (lol, protection scrolls) can't be traded/duped. Having them as untradeable & store bought/quest obtained would be a slightly better approach, but that isn't going to happen.