I posted this in a thread on the forum, but I guess it bears repeating in a more indelible place:

• It's been mentioned that you should do an advanced search before you suggest new pages, which I would like to re-emphasize, but please also note that the search engine hiccups a bit if your search query has a colon in it, so if you're submitting, for instance, Resistance: Retribution, search up Resistance instead of the whole title.
• Please, please, please put down what type of change you are making in the box at the bottom. Are you relating similar games?  Are you adding games to a character?  If you're making changes to article text, what section is it from?  These things really help us prioritize and streamline when approving submissions.  "Adding information" doesn't really help us, because hopefully that's what you're all doing! =)
• I will re-emphasize that we'd like Giant Bomb to be fresh and original.  If people want information from Wikipedia, they'll go there.  Let's build our own world here, yeah?
• Finally, please be patient with us.  You're going to get a lot of stuff rejected because in 3+ days' time, other people are going to come up with the same characters to add and similar games to relate and all these other wonderful things as you do.  As Jax said, it's a process, we're doing our best to make it work, and we're all together on this.

Hang in there and keep up the good work, everyone!  Remember to not be bitter about points, they're just a number.  I'm constantly amazed at what everyone is coming up with (someone please fill in the grass concept page we just approved with ridiculous minutiae)!