A writing portal has been in the planning stages for a while now if i recall correctly.
The art portal is only relatively new compared to the rest of the site and still has some improvements with how it can be maintained, and the writing forum is even newer than that.
The inherent problem with it is that unlike a flash, a drawing, or audio, writing is a bit more of a subjective and time consuming thing. You can't just look at a piece of writing and instantly see the quality of work being presented. You usually have to read the whole thing to decide.
That said, making a bunch of threads isn't gonna do anything. Pm one of the admins if you wanna do something or at least get some info.