Good initiative on this. Beyond the financial rewards, I feel that "Leave comments" is the best advice you could give out. Some of us are typing our fingers to the bone and loving every minute of it, but without comments and feedback it's almost akin to shouting your story in the street while people walking by put change in your cup. It's of course appreciated, but writers need feedback and constructive criticism. Most of us have a million subjects to write about but would pick those subjects that develop community dialogue. I hope you guys make it a point to promote the undiscovered talent while also nurturing that budding author with honest feedback.
Humpy hap Day