Is it possible to provide a "check box" or other such interface that can inhibit / allow email-notifications on a JIRA-issue-event-or-edit by JIRA-issue-event-or-edit bases? That would be a great stop-gap measure until an automated / autonomous solution is implemented.
I do like JIRA, but if others in my group do not use it (that is, they dump all JIRA emails into the trash), I can't see spending money on JIRA in the future.