Legal Stuff.
We can't be held responsible if two people submit similar ideas and we choose one. Many people have the same idea, or a variance of that idea, at the same time. That is just how it goes. For example, the plot "a protagonist learns the way of an indigenous culture and slowly becomes one with them," has been seen as Dances With Wolves, Avatar, The Last Samurai, and Ferngully.
A magically gifted orphan boy is sent to live with his relatives to hide him from the evil that killed his parents. Harry Potter, or Star Wars?
See what we mean.
Also - It is solely the responsibility of the submitting party to own copyright for the work they are submitting. By submitting you indemnify I SEE IT of any liability resulting from your not having copyright over your represented works.