spinefarm: Mmm Contest/Giveaways area would be nice - politics and what game are not needed (Politics are easily in offtopic,What game - gaming threads..)
The reason to give "what game" their own subforum is because there are so many of them now, and giving it its own subforum would increase it. It's someting that's not technically OT, but it very quickly clutters the forum anyways and frequently they get answered within 5 posts.
Placing them in their own subforum is something that potentially makes sense. But, I'd recommend crossing that bridge when we get there as it isn't yet to the point where anything needs to be done. And separating out the OT stuff would really solve the bigger problem.
Politics, getting it's own subforum is mostly because it tends to get flamish at times and heated.
But, ultimately, without more moderators a forum split isn't something that's likely to work as the few mods we have wouldn't be seeing everything or even as much as they do now.