CVar autoCompleteResortNamesOnRecency

Shows people you recently spoke with higher up on the AutoComplete list (when typing in a name to message).

Default Setting

 * 1

Possible Settings

 * 0 :Off
 * 1 :On

Changing this setting
In-game, type the following /console autoCompleteResortNamesOnRecency setting

Alternatively, you can exit wow, open the Config-cache.wtf file, and add the following line: SET autoCompleteResortNamesOnRecency setting