Originally Posted by kebosabi

It's still in use as the backup of all backups, as carbon copy imprinters can be used without electricity or telecommunications. In times of disaster (i.e. Japan's Tohoku earthquake of 2011 or Hurricane Sandy in 2012), these things come into action.

Hence, somethings like raised numbers (though some cards these days are coming out without them) are better kept intact in consideration for out-of-the-ordinary situations like natural disasters and such which carbon copy imprinters come into action.