My point was that even without anyone taking that risk, the information will spread. Someone reads the code, mentions it to a friend, who adds it to a blog pos

My point was that even without anyone taking that risk, the information will spread. Someone reads the code, mentions it to a friend, who adds it to a blog post, which gets cited in a wiki, which gets read by a developer unaware of the source. If the information is useful, it will end up getting spread.