I was thinking more like, say CMDR BOB JAMESON is a stand up guy. So some blackguard creates a commander B0B J4MES0N and goes around griefing noobs and generally being a jerk. Next time BOB logs in he might find that the universe is a bit less friendly.
One of the barriers to this kind of griefing by proxy though, is that while B0B J4MES0N goes around griefing new players, he gets a criminal record longer than my arm, a bounty on his head bigger than the national debt, and negative reputation in the form of being recognised as a pirate or a murderer, while BOB JAMESON may very well still have a clean record, unaffected reputation, and no bounty to claim.
NPC's can distinguish between the two. It's only players who will have trouble unless they're eagle-eyed.