Kimber, as Spacenewt says. Take a deep breath, take a time out or whatever it is you need to calm down. The site admins have already stated that they're seriously looking into adding a 2D section for Tubes and other 2D related items.
All I'm doing is posting the facts as I know them. I'm NOT here to give you or anyone else any grief or to take grief off of you either. The fact is, Plugins is NOT the broad catagory you wish for it to be. It's a very specific catagory for software plugins and scripts. Period.
Hey SpaceNewt, I think brushes will pretty easily fall in the 2D catagory as well. Just make sure to let the admins know you'd like to see subcatagories in the 2D section like they added to the Poser section for the different types of 2D files. Poser has subcatagory checkboxes for each of the separate Poser file types like Cameras, Lights, Faces, Poses, Morphs etcetra. I see no reason why the 2D section can't be subcatagorised in a like fashion with sections for Tubes, Brushes, backgrounds and what have you. Help the admins by telling them what you'd like to see now.
It is a miracle that curiosity survives formal education. - Albert Einstein