CVar showToastBroadcast

Whether to show Battle.net message for broadcasts. This is the status updates found under the REALID friend's name.

Default Setting

 * 1

Possible Settings

 * 0:Off
 * 1:On

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

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