They destroyed it ostensibly so that they had a stronger guarantee that that GUID would never be generated again.  That said, I suspect they understood it wasn&#x27;t strictly necessary and were looking for an excuse to have some fun.<p>Note that even in the MAC-based generation algorithm, it is difficult (but not impossible) to accidentally generate the same one again even on the same hardware since there is a high resolution time component as well.<p>Random UUIDs have a different encoded version number so it&#x27;s actually impossible for a modern one to collide with the one they generated.