I would really love to see the addition of a downloads section, for mods, skins etc that people have created and want to share. as seen here for example [url]Zen Cart Plugins.
There is an suggestion in the Ideas area that you can vote for:
[url]http://cscart.uservoice.com/forums/40782-general/suggestions/598153-community-addons-skins-page[/url]
Bob
However, as with any software, there is no guarantee that user submissions it will not open some vulnerability to your site…