When a followed question is edited or closed, it triggers an inbox notification for those who follow it. However, I just noticed that starting a bounty does not trigger an inbox notification, nor does ending it.
I believe that a bounty is as important as an edit and most, if not all users would want to know when a bounty is started on a question that they follow.
I'd argue that it's also important to get notified when the bounty ends. This is because a user might follow a bountied question because they would like to start a new bounty if the current one ends without a satisfying outcome.
Can bounties be added to the list of actions that trigger a notification?