Submissive to submissions!

It's addictive isn't it?

My only gripe is that I search the boards to make sure my submission isn't already there, then I go submit's in there for days...then someone else's submission for the same thing goes through meaning I know mine will now be rejected.

So how exactly does this work?

If two or more people submit the same thing, does it go in date order? Or is it just pot luck over who gets the points and who gets rejected?

Anyone with the knowledge to explain this, or have a similar gripe?