I rely on what i feel is a suiting category so if they submitted to one and i feel its fine where it is, i will leave it in place, or move it to an existing more relevant one, or create a brand new category for it. I am building my directory for anyone and anything that will visit it, that includes visitors, webmasters, search engines anything that visits, even someones pet cat that has accidently typed in my directory url and finds itself staring at the CILF (like MILF) category listings. No fear of moving a listing if its out of place.
I don't really ever seem to have that problem because people actually do respect Directory Dump and submit accordingly. They know the traffic will be there whether or not they are on a top level or fourth level category. It's all one in the same. If by chance someone does try to get over on a category, they will in fact be moved, like it or not. It's a directory, not a free for all
Last week I saw your free MFA directory, this is why it is so easy for you to reject free listings. You just don't give a shit.