The fight broker NPCs are spread throughout the world, and are intended to help people find consentual pvp.
This command registers you with the fight broker. You will be temporarily orange to everybody else on the fight broker list, and they will be orange to you. All associated flagging rules that come with being orange apply to the fight broker. This costs 100 gold + 10 gold for every previously registered player.
Simply displays a list of all the people currently registered with the fight broker. The guild abbreviations of people registered with the fight broker will appear next to their name. (Offline) will appear next to their name if they are offline.
Like list, except lists only the online players.
Fight broker displays the coordinates of a registered player.