Hello,
I've been browsing through these forums lately, and I must say there have been a lot of good posts. Unfortunately I feel there are just as many bad ones!
Before posting your WIP, I suggest the following:
Try to have images available. It can be anything: screenshots, concept, etc. Just try to have it available, it will catch the reader's eye and draw them in.
Expanding on that, I personally don't count "screenshots" from the "opening sequence" or main menu as real screenshots. These things can be easily whipped up in paint or Photoshop, so even if they are legitimately from the game itself, it won't give you much credibility. I think what people are looking for are actual, in-game shots. If you don't have that, consider waiting.
Have some background to your project. If you've JUST thought of it THAT day, don't post and say "so what do you guys think of this idea?" Give it some time, develop the idea, and THEN post.
Everyone else, feel free to add to this.
Team EOD :: Programmer/Storyboard Assistant