I recently submitted this picture: http://www.imcdb.org/vehicle_604575.html

It is listed as unknown, but I labelled it perfectly as the Porsche VK4501 'Tiger P'. Now I can't find a way to edit the info back in.

I guess that the admins who validated it weren't sure that the info is reliable.
We lack of people knowing this kind of vehicles so we do not know if people sending the info are reliable or not, since we also often have some coming to the site and just "guessing" names by searching the first vaguely similar thing.