I often find myself helping out with other peoples' cases and cleaning them up by correcting their category, or putting them in the correct project/area, but every time I do this, the assignee and any subscribers are getting sent an email. In almost all cases, all I'm doing is changing a simple field, and I don't usually add any comment text because my changes are pretty self-explanatory (and/or no one else really cares). With the addition of the Tidy Cases plugin, the concept of a "minor edit" was added, and all of these sorts of edit fall under the "minor" category. So, what I want is a way (via a plugin or otherwise) for the system to not send out emails for these minor edits (possibly with an override ability to send the email anyways)
see also this post for more control over Autosubscribe emails.