Wouldn't it prove more useful to stop plagiarism by not posting the final part of your work? I men, because then it's not a complete story, and it's near to impossible to recreate someone else's writing style to make the ending and supposing it's not a happy ending or vise verso?
It just makes sens to me, but it may not be that simple; I just thought I should put in my two cents...which used to be a full silver dollar until my sweet tooth came n_n