I have an idea, since you got a episodes section and a graphics section on the top menu. It would be nice to also have a levels section up there. People can post their levels there and play others. I don't know if this was already discussed or if those episode and graphics section works like that.
The Levels forum serves that purpose just fine (especially when we add a forum for "The Best" levels). The reason why there are pages for episodes and graphics is because it would help to have a place for the CGFX pack, official episodes, and other things. There's nothing really "special" about single levels, so they're just fine in their forum.