Well, so the website is trade-free, as it does not want anything from me. Trade-free content should be free of any license nonsense, since any kind of license is a form of trade, right – (you are only allowed to use that picture IF you credit the guy/girl who took the picture). That’s trade-nonsense. Wikimedia Commons have some different licenses (https://commons.wikimedia.org/wiki/Commons:Reusing_content_outside_Wikimedia), but I guess most of them are pretty trade-free. A website about only trade-free media with no strings attached at all would be awesome!