The R scripts I have written for a couple of wiki pages do not come under this description:
> clean, well documented implementations of basic numerical algorithms, using up-to-date tools and paradigms from software engineering.
Instead, they were aimed (only) at producing graphics for the relevant page. I think they should remain very easily accessible to anyone who wants to edit these pages in the future and update the graphics. Of course if someone wants to clean them, document them, and turn them into wonderful examples of modern software engineering, I will not object ;-)