Or just accept that an Open environment includes the same kind of people in a game that an open environment does in real life, and if you don't want to get punhced in the face, don't go to a pub where it's known that strangers get punched in the face? Or be prepared to defend yourself, even better!
1) Hope not serious. I support inconveniencing them, but a lot of these guys farm credits for rebuys because they fight and die A LOT. Increasing their rebuy still further is not the right way to go, that will just make them go play some other game, and while you might think that sounds like the perfect outcome, it really isn't. A call on an ancient Klingon proverb... "Pity the warrior who slays all his foes"
2) What does that help? The biggest bounty you can collect on a player is limited, and griefers never pay off their bounties, they wear them with pride.
3) Even more ridiculous than than (1)
4) Some kind of mechanism around this would be nice, agreed. The most infamous criminals in the game galaxy should be reported by the AI and their last dock published in some way.
5) At last, you ask for something that supports gameplay around this. This is what the game needs, proper support of both styles of play, criminal and bounty hunter.
I say again, the OP is not right, because live stream, for the giggles. Griefers are another matter, and again they must exist or I have no reason to. How can I defend freedom and justice if it does not need defending...? There are no people like me in Mobius.