Interesting. I didn't realize unarmed ships can (lawfully or otherwise) fight back. You'll have to enlighten me on how to fire weapons that aren't fitted to my ship.
It is a player causing problems for others through legitimate game mechanics. I'm sorry you don't like it, but if you have no problem with players interdicting and destroying helpless player ships, then you should have no problem with this player's actions. If anything this is more legitimate game play because as you state, it's not a crime.
I'm not talking about what 'should be' or what is 'morally right'. I'm talking only about what is, and what is logically consistent considering what is.
EDIT:
And yet, the 'griefing' thread is chock full of people saying (in so many words) "IT'S A LEGITIMATE STRATEGY!" Hence my bemusement at the disparate reactions to what is essentially the same thing.
Okay, your assertion is that you see no difference between station-ramming an unarmed ship and interdicting/destroying an unarmed ship.
Here are the differences:
Station-ramming an Unarmed Ship (v1.2) (w.r.t. the Rammer)
Legal status afterwards: CLEAN
Action of System Authority Ships afterwards: None
Action of station after Authority Ship scan: Allow to dock
Bounty hunter response: Cannot attack, or will be WANTED and destroyed by station
Interdicting/Destroying an Unarmed Ship (w.r.t. the Attacker)
Legal status: WANTED
Action of System Authority Ships afterwards: Will attack
Action of station after Authority Ship scan: Deny docking
Bounty hunter response: Can attack
There are some pretty obvious differences, and they have nothing to do with whether the ship attacked is armed or weaponless.