It just hit me that Q has repeatedly posted the following line in recent posts.
>The silent war continues
More recently each word has been capitalized like so:
>The Silent War Continues
This sure looks like a signature like Q has used in many posts in the past and all of those signature refer to various movies (Red October, Sum of All Fears, Godfather III, Snow White, etc.).
I started hunting down movies by the name "The Silent War" and several pop up. I think this one is most notable as it deals with Chinese spies. This might be worth a dig.