Over the years, we have occasionally received questions about the
intent and legal interpretation of the SRFI copyright.

After mulling about this issue for quite a long time---mainly because
we initially couldn't agree whether the license is clear and
understandable enough as it is---and consulting indepdently with legal
experts, I've added some brief explanations to the FAQ:

http://srfi.schemers.org/srfi-faq.html#copyright

Hopefully, this will answer the pertinent questions.  If any remain,
please let us know.

--
Regards,
Mike Sperber
for The SRFI Editors