Make the communication and collaboration in your team easier or use it as a scratchpad.
If you will send your message via e-mail to any user, so write @username (example: @admin).
Since version 2.1 you can add tags directly as hashtags. Examples: #2012, #Microblog
The default settings WPAM_DEFAULT_TAGS, WPAM_DEFAULT_NUMBER_MESSAGES and WPAM_DEFAULT_SORT_ORDER can be overwritten if you define this parameters for example in your wp-config.php.