I know that trading stuff from the Rammstein traders. It's a pain in the ass for someone like me that likes to share everything he knows with the rest of the community, hence my RammWiki project. But sometimes it's a necessary evil to get stuff by trade or even buying it (like a friend of mine bought a demo tape with yet unreleased content for 500€), before you sit on it for years until the opportunity comes to use trade it further. But with time you may have enough rare stuff to bring some of it to the public.
Sure it's making money off other creations, but so is that for rare physical stuff as well, isn't it? (Yes I know, that copying digital files isn't exactly the same, but still selling rare shit is making undeserved profit as well in the end)
Whoever is responsible for these recent leaks and all the people behind the curtains that managed to get that stuff: I'm eternally thankful for your work! Keep it coming. From fans for fans.