Exactly how much damage the attacker does and whether you still have a ship at the end of it is not the important point.
I disagree completely. Data remains if hull remains, even at 1%. And a pirate trying not to destroy you has much more work to do than a griefer trying to destroy you, which allows more time for escape if thats what you choose. Winging up for protection against Pirates is emergent gameplay, well it would be for me anyway.
You cant take Piracy out of the game, its been a valid playstyle since 1984, you could take PVP Piracy out of the game but the proper RP ones do add a lot of flavour to the universe. Or add that NPC ships will drop X tons of Cargo on destruction but humans dont.
NPCs that are going to blow you up always warn you first.
Griefers add nothing they only subtract and end up spoiling the game for everyone else by abusing the system until the system locks down for everybody.
I cant recall which thread it was but the main issue people had with griefers is the non-communications and no gameplay, they'd mind dying a lotless if there was some RP or gameplay in it.
I'm not a Pirate btw, I just like people who RP and try and give an experience to the other side.