did not delete content

hi,

dont know if this is a bug or support issue.

installed this module and tried both the delete all content and delete all users functionality.
(unfortunately I dont remember which I tried first)

all users except for the ones protected were successfully deleted.
all content was not deleted. rather, the owner was changed to anonomous (perhaps when the creator was deleted)

now, i cannot do a mass delete at all since the anonomous user seems to be protected by default.

am I missing something?

thanks