Quite by chance I came across a hidden Category called "Unidentified Far Eastern Shipping (Admin use only)". It contains some 730 member photos (they are not themselves hidden and I think do get listed if searching by ship name or by member). It's here:
http://www.shipspotting.com/gallery/search.php?search_category_1=221I suspect that it doesn't appear in the photo upload menu so that members will not load images directly there. I assume that the relevant Admin, probably for "Ships to be reclassified/waiting identity details" (perhaps it's Ilhan as he is photo Admin for "Mystery Ships"), then redirects those where sufficient ID emerges to allocate them properly.
A lot of the IDing of otherwise unknown or uncertain ships comes from the activities of members and their sleuthing, so it seems to me a bit counterproductive to have the category hidden in this way. Can something be done to make this accessible through the front page, even if it cannot be selected when uploading?
Are there any other similar categories?