Godmod
As mentioned previously, nothing godmoddy, nothing unfair or to powerful or anything that gives you the ability to metagame. Of course you can try to make it fair, though if it even slightly godmoddy it will not be approved.
Plagiarism
Unless consent is given you aren't allowed to have the same ability as someone else, of course common things such as hearing, smell and eyesight don't count, but say for things that are extremely original do not attempt to have the same thing without consent.
Patience
You don't have to rush to get something up, the site isn't going anywhere, so take your time. If you do so you are more likely to get an easier approval which is what you want, to get your desired trait approved.
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Traits Template
Name: (What's the name of the trait?)
Cost: (How much does it cost?)
Elements: (What Element does it relate to if any?)
Effect: (What does it allow you to do?)
History: (How did you receive this ability?)
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Limits
Under 100 Posts-3 Traits
Over 100 posts-4 Traits
Over 200 posts-5 Traits
Over 300 posts-6 Traits
Over 400 posts-7 Traits
Over 500 posts-8 Traits
Over 750 posts-9 Traits
Over 1000 posts-10 Traits
Over 1500 posts-11 Traits
Over 2000 posts-12 Traits
Over 2150 Posts-13 Traits
Over 2750 Posts-14 Traits
Over 3000 Posts-15 Traits
That's all for now, yet likely to change once people start going over 3000 posts, though, that should take awhile.