Just Kill Them, That's What You Want To Do

If, as a player, you think the game should be a totally free sandbox, and you should be free to do whatever you want to do in the game, including violence against the other player characters, then why not just kill off the other PC's? It would be a working strategy to make a buffed Ranger, then kill the other characters, take their stuff, upgrade, and wait for the players to make new characters. Repeat. Your character will get a lot of stuff to sell, left over cash, and XP. Additionally you don't need to worry about dangerous monsters or dungeons. Win-win.