World of Warcraft had this in Booty Bay. There was a hilarious achievement where you first got your reputation to max with the Booty Bay guards by killing the nearby pirates, then the other half was to kill the guards until the Bloodsail Buccaneers faction exalted you; a 2.5x reputation grind that took weeks. And when you were done you couldn’t enter Booty Bay anymore because the guards killed you on sight.
The things we do…