You’ve got a lot of good points. However, please do not attack people who are being pursued by the MC or people who has a lower lvl than you. The only exception is if you are causing a threat.
Unfortunately it mostly won’t be arguments, it would be screams, so brace yourself.
I pretty much agree though, even if you attack fresh level 40s, which makes you an asshole, you chose to be an asshole and that’s a valid choice. Just don’t get mad when people get back at you for killing them and you can do whatever.