Yes, what a wonderfull example of corpoorate paranoia. They are out there- the enemy, the other tribesman and there psychopaths- out to get me, my fortress, my product for cheap- but i will show it to them, i shall leave no mark upon this world, for which i shall be remembered.
IIRC, tehy're a major hindrance to people who want to legitimately restore old arcade/pinball machines, rather than just grabbing a cracked rom.
[1] http://www.arcadecollecting.com/dead/