I guess I'm among the minority who found the once-in-a-while-fresh lines, once-in-a-while-different takes on the same lines, and semi-OT of the ol' liney thread one of its attractive things. I agree with Gil in that, I sometimes color lines, but I'd never even start coloring them if I knew I'd have to make a completely new thread to display them in. Part of the coolness of the lineart thread is that you can just take some cool lines, splash in some color, repost them in the same thread, and have it all be just an excersise, or something not to be taken seriously but you still want to share...you know? Without having to worry about people giving comments beyond "Cool" or "I like the way you did ____." You know? It's like, I color lines as excersises, but with every intent of posting the results, but I'd never begin coloring if I knew I'd have to post in a new thread - which would mean I wouldn't post it because I like all my posts to be completely from scratch - and therefore I'd never do the excersise to begin with because I knew I wouldn't post it...
I hope you get me.
Maybe divide it into seperate threads: "Clean Lines" and "Line Colors"
Or something.