Earlier quoted context omitted.
Probably not. Clean room RE is serious business, projects like Dolphin have to carefully vet contributors to remain legal.
Everyone says this, and then exactly zero cases are cited in support of or against this creative legal theory known as "clean room RE." No statute defines "clean room RE" and there's basically no relevant litigation establishing case law.
I seem to recall DeCSS being the 'hot button' as it was RE'd in a 'non clean' way, the code released, and then a 'clean room' RE could be made from the 'public' info ??
edit: actually, at the time I think there was German law allowing RE for 'interoperablity' or some such. But that was a long time ago so my memory might be off.