Too general confirmation message when deleting an object
Whenever you try to delete a repository, workspace, an attribute etc., you have to confirm that operation. But the confimation message box does not tell you what you are actually deleting. At that point I always click "No" to abort the operation, make sure I really selected an appropriate item and then attempt deletion once again.
It would be better if that kind of messages named the object being deleted. The infomation like "Deleting 1 object(s)" causes a risk of deleting something else than the user really expects.