The main thing is that if you can judge whatever finds someone else as right or wrong, again...you're taking things too far for a game. You don't know the motivation to start with; some Empire factions are really quite serious about systematic elimination of Fed ships or ships in certain areas of Fed space. But for even those that just enjoy blowing things up....there's often more structure to it than first appears, and a different kind of satisfaction for them. I remember watching a random vid of someone blowing up a trade T9 because it was flying unshielded in Open - I'd go as far as that being a valuable lesson, and certainly more enjoyable for the teacher than the pupil
The bit you describe as Empire aligned ships eliminating Feds, thats what i wouldnt call griefing. In game reasons and all
Destroying a trade T9, it depends. I would have stolen some cargo or something else and then chatted to say, dont fly undefended in order to teach a lesson.
Blowing it up and saying nothing doesnt teach any lessons other than there are some sad cases out there. You could say its teaching a lesson, but alesson isnt taught by actions alone and its a weak justification if they havent actually said anything.
Cant see what enjoyment you get out of destroying an unshielded T9, pretty much is shooting fish in a barrel, except the barrel of fish has better chances of dodging.
Unless you're doing it to utilise BGS, in which case a simple explanation would go a long way.
Hey this is just my opinion, I'm not saying I'm definitely right.
You could say I'm being judgemental, but I haven't really been proven wrong over the years with the actual individuals, I have met or spoke to out of games. Still makes me judgemental i guess.
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Just want to add, that all this opinion of mine is down to the lack of consequences for crime in game
As soon as something meaningful is added then I will be changing a lot of my perceptions