Also some people do this deliberately, get a killright on their character with an alt then park a freighter or battleship or such outside the Jita docking ring at a higher price than the ship itself.
(Note that this case they do not try to prevent losing their ship by docking up so they are not within the docking ring.)
This way the price goes into their own pocket thus they basically sell a killmail to anyone who bothers to pay for it. It is more of a transaction than a scam unless the person paying for it thinks this obvious situation is not deliberate (and even then they scam themselves through their ignorance).
(The ship usually parks there all day until the ship is blown up after which it is usually replaced with another with a new killright on it it. I’ve sometimes even witnessed more than one such ship near Jita 4-4.)
Some examples: