Remember that by uploading it you are free open source licensing it, so anyone can then grab it to use for pretty much anything they want to, derive derivative works from it, hack it up to use for other purposes and all those usual free open source activities people do with free open source stuff that is why free open source stuff is so useful to humanity in general. (No one ever again need go cap in hand to Bill Gates or Stephen King for a text editor or a horror novel, for example, once free open source text editors and horror novels exist that can be freely used instead of the proprietary ones...)
-MarkM-
What is the license? Do those who make derivative work have to attribute, etc?