There were two players in my server I remember in particular, named Bunghole and Buttworms. The latter I didn't get to know, but he was a strong player of my server respected by many. The former was a funny guy, smart player, and dedicated alliance member.

Strange names, but they were valuable players to the server, IMO.

Of course, sometimes there are really immature/provocative sorts across the game, though some just pick an odd name for the "lulz" and end up being pretty decent people.