Porting policy has changed somewhat. Basically, ported content is treated the same as if it were an author that cannot be reached (and for the most part, this is totally correct as I know some companies like EA have absolutely bonkers PR departments, and some companies like Valve don't even have one it seems). You can remix the ported content into your own subject material (be it a ported model in a large mod, or porting a model and changing the textures entirely), but you cannot remirror it without the permission. As long as you (and the staff) feel comfortable slapping your name on something, that's what we go with. That being said, if any party approaches us and tells us to take down files, we do it, no questions asked. We aren't legally liable for any kind of damage with the files (there's a disclaimer box that must be ticked for a file to be uploaded which states that liability is on the part of the user).