I don't mean to be the guy who posts an allcaps facebook update declaring that mark zuckerberg doesn't have my permission to own my photos, but I am curious about licensing/ownership surrounding what's added to the workshop.
http://store.steampowered.com/subscriber_agreement/
Section 6 seems intended to grant Valve the right to take screenshots and pimp your shit on the Steam frontpage with them if it wants, but does so by declaring that it has right to anything that falls under the definition of derivative works with regard to anything related to the operation of Steam.
Can any legal/licensing mavens clarify?