Hi,
inspired by the recent discussion on non-commercial-use-only images, I have proposed to change the text of the Upload page:
http://en.wikipedia.org/wiki/MediaWiki_talk:Uploadtext
In particular, I think information on how the form works (or how to add images to articles) does not really need to be there (people skip it anyway if they think they know how it works, and if they don't, then they will happily follow a link to find out). I think it is more important to place information on this page that people usually regarded as "not important" or "not necessary", as is the case with a detailed description of the source of an image and the licence of the image.
Thank you, Timwi