Ultima Online dev team. The title's 15th anniversary has offered ample opportunity for stories from the early days, the latest of which come courtesy of Lord British himself (and no, it's not the one about his in-game death).
Richard Garriott tells of his run-in with a player thief bent on ruining the game experience for a new player. It's an amusing anecdote that illustrates how UO's early incarnation led to plenty of unexpected gameplay scenarios. "After [the incident], I began to think more carefully about the rules we ourselves put in the game, and the inevitable play styles that would come of it," Garriott writes.