It is a very slow process. I'm the only one who adds to the main database, while dozens of names are added to the submitted database every day. There is no way I can keep up. It is not so easy as simply copying from one database to another, since additional verification needs to be done and more information added (such as the relations between names, in order to generate the family trees).
Fortunately the submitted names are almost just as visible and accessible as the main names. For example they both can be added to personal name lists, and both show up in searches. There might be further integration in the future. There is a good team of editors working on the submitted names, so the quality of the information is generally excellent.
I would like to add the ability to upvote and downvote submitted names, sort of like you can do in the name comments. This leaves questions such as: should the voting score remain even after an editor has improved the name's entry?
The tagging, comment and ratings modules might be added to the submitted names at a later date too.