Problem Definition:

Currently, only administrators can disable notifications for changes made through bulk edits.

Suggested Solution:

Add an option for admins to disable notifications on bulk changes for all operations across the system - this would cover bulk operations performed by regular users in the application, as such users can't opt-out of notifications being sent.

In the past, the jira.option.bulk.send.notifications property existed (but it seems like it never worked), which sounds like a useful property - this one was removed on through JRASERVER-15660.

Why this is needed:

Depending on the scope of the bulk edit, hundreds of thousands of notifications might get generated by a single user. Today, Jira and the mail server are forced to take the hit if a user performs such a change. Having an option such as this one allows admins to reduce the impact of a big bulk edit without requiring temporary changes to a project's notification scheme.