I propose ability to define system wide smart actions for commits, by parsing commit messages. Example:
Admin could have one more section where one can add a list of actions, a lot alike hooks config page. One enters action as free text, for example "+anything" and chooses subsequent action to take by RC from the list or free entry to call external script - for example, send email to email@example.com, firstname.lastname@example.org. If text "+anything" is found in commit message, subsequent action is triggered - email sent in this case.
Later this can be expanded more and more with function groups etc.