I’m sure this has been discussed a few times before but I’m gonna take a stab at it anyway!
I think player Bounty system would be amazing!
1 npc where you can add from the player list a Bounty on said player. You pay the npc for example item x gained from killing random world boss let’s call it a “Bounty coin”
Player B accepts the Bounty and brings the head of said player to the npc and receives the Bounty coin.
To prevent harassing and or exploiting (too much) you can only claim 1 Bounty each day and x amount of Bounty coins can buy you thralls/pets/weapons.
I don’t honestly see this ever being implemented. Since I’m sure alot of people can poke holes and find exploits to a system like this. But i really think it could be a cool feature