That is a good thing though. ) IMO a CSD should be easy enough for someone to understand who may not always be involved in that area. It is more of the wording though. Not talking about a fair use image that is orphaned, not talking about a blatant copyvio as that is covered, not talking about a WP use only as that is covered. Really it is only for otherwise "properly" licensed, "user created", images that have been orphaned, or were never used, that would serve no use outside of the deleted (or non existent) article. (Totally unrelated - how was turkey day?)