I opened my gaming forum around late august so it's pretty new and so far it has only gotten me my money back for hosting. My only problem is not having any active members they don't really post a lot they read a lot but don't post a lot =), so if anyone wants to check out my site its on my sig. btw nice site m3rc
Give them a reason to post like a post contest. Give a section of the forum to a clan or something... Good Luck, I'm also in the gaming industry.
@sineeater - what methods for traffic are you applying? thanks for the comment btw @houck - please do share with us your site