Regarding image syntax, would it be possible to allow an image to be a link
elsewhere, but if not specified defaults to its image description page? On
the main page, [1] could link to [2], which is the logical intention of that
image being a link. Another example would be the Wikiproject Spoken
WIkipedia sound icon [3]. That image, and others like it, aren't intended to
draw you to the images page, but rather the project page instead. I think
when you click on it you initially expect to be taken there, too.
[1]
http://upload.wikimedia.org/wikipedia/en/5/5c/Other-langs2.png
[2]
http://en.wikipedia.org/wiki/Main_Page#lang
[3]
http://en.wikipedia.org/wiki/Image:Loudspeaker.png
/Alterego