Terry,
Thanks for opening this.
A few reasons why we'd like to be able to have more control over the visibility of certain tabs, and the change history in particular.
First, we feel like our users should not be able to see any workflow changes. This should be reserved to the administrators. Users should only be concerned with the status of their issue and the updates to the actual issue, not necessarily its workflow. They might see this as some kind of "data corruption" which obviously is not what we want customers to see/feel.
Also it looks like there are redundant entries in the change history or too many entries for a simple action. We feel that it will prompt a lot of questions from inexperienced users who will probably feel a bit confused by all these entries.
The third reason would be that the dates and times of acknowledgment of the issues are important to us and should only be used by our administrators for reporting purposes. It should be at least possible to "grant" the permission to view the change history.
I hope this will help towards a change.
Regards
Mel
yep