Did he really "steal" it? If you make a translation for the love of it, and release it to the community; isn't it community property to do what you want with it?
People release their fan works with their moral terms-of-use like free for non-profit usage, and you can respect them or flip them the bird. They're typically NOT released under terms agreeing to let you slap them on newly pressed CD-ROMs for commercialization to profit with via your eBay storefront/business... Why would they be ? They didn't get into the work to make people like Tobias wealthy.
But once again, you can flip them the bird, do whatever you want, feel that since it was uploaded on the Internet, "
too bad sucka!!" Now you can rationalize it however you want. But there's always a better way than sneaking around and using the product of a fan team's work without permission/inclusion when you attempt commercialization because you wanna pocket 100% of the net earnings assuming you have a fan team that would wanna cooperate with you.