So, the rules REQUIRE you to go out and prefer targets that will not fight back effectively? Don't confuse the social contract with the game rules. Being a jerk is about how you treat other players, not about what the game rules
allow. Interdicting someone, killing them out of hand, costing yourself money and then simply leaving IS being a jerk. The "game" you are playing isn't Elite, that is merely your method.
This is especially evident in the fact that you are arguing your behavior in the only game on the market with the kind of death penalty found in Elite. If all you wanted was human targets, you would be playing games that didn't, first, have a physical cost, Warthunder being one example, and, more importantly, didn't impose a penalty on players for dying, the latter point being important because you are costing the person investment time & progress, as well as in game finance.
The fact of the matter is that you are employing
Online Disinhibition Effect. That is to say, you are being abusive to other players because you know there is no significant repercussion for your behavior. In other words, you won't be penalized for being a jerk because the person isn't somewhere that you have to care about their reaction to your behavior.
Quit lying to yourself and admit that you are using a computer game to try to cause emotional hurt to random people because you can just walk away without cost when it is done.
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To, hopefully, prevent the, bitter explorer, rebuttal, I have never been killed by gankers (although, I have killed 2x Suicidewinders) and, personally, have plenty of money for my in-game desires. I also, until recently, gave up on the game for roughly 18 months because of what the exploration rewrite did to the game.
I am writing here about your ethics as a player, not about the Lore, the rules, or any of the other misdirects commonly employed in this sort of argument. By ethics, I don't mean your choosing of a faction, a Power or any other in-game structure.
When I express ethics, I am referring to how the player conducts themself in their gaming. You could consider it my version of ganking, except that I have never initiated this type of discussion, relying instead on your own statements and the fields of Psychology and Ethics.