From my point of view, this is a bug.
The user editor/viewer, and especially the export user objects tool when "Include Privileges" is checked, should warn me that the views are not available, and the privileges can't be viewed or exported, when I attempt to access the features.
A related problem is that "Compare User Objects" doesn't seem to compare the privileges at all, no matter how this option is set.
Silently not exporting the privileges already caused a complaint from one of our customers that believed we forgot to set them.
As a quick fix, this preference should be enabled by default after install, or at least make it very clear during the installation about the implications of not setting it.
And finally, the forum does not work on Internet Explorer 8. After login, when I click anything, the session is lost, so you can't post anything on the forum.