b) you should ignore all such discussions, since they invariablly include lots of legal-sounding opinions from people who are not lawyers and don't know, and often have significant misconceptions.
Indeed I'm not answering to Florian's latest message, because I'm not sure what he misunderstood of my message and I would probably give out wrong information.
But I don't see much misinformation in the replies so far (can't judge mine of course), unlike other recent licensing threads.
Paolo