Please confirm there is no current way for space administrators or moderators to add/delete/edit idea categories or idea stages within their spaces.
Users can manage idea categories and stages in Manage Space. Check out Manage Space: Add Idea Category and Manage Space: Add Idea Stage .
Not according to my tests. I will submit a case.
is requesting access to a wiki that you have locked: http://my.axerosolutions.com/spaces/5/communifire-documentation/wiki/view/21112/idea-permissions