Upload & Sell: Off
Just a thought, it's not as rare as people think.
It happens on ebay and other places, a 'friend'/roommate/etc. to takes a long vacation, is out of town for a period, or even dies, then they (typically someone who they trusted) assume his identity and uses it for a number of illicit activities. If the guy is going to come back, the fraudster makes sure to leave by then.
I doubt anyone would do it for the sole purpose of getting rid of a lens, but say the lens was stolen and there was other stuff going on too.