[cc-community] A case against CC-BY-SA 4.0 -> GPL

Maciej Pendolski beholder0x100 at gmail.com
Wed Dec 14 15:36:31 EST 2011


After having written some rather pro-[A]GPL posts I'm going to write
something against CC-BY-SA 4.0 -> GPL.

GPL option could be very divisive:
-GPL-licenced content contributors could refuse to contribute back to
corresponding CC-BY-SA-licenced content
-CC-BY-SA-licenced content contributors could get frustrated at inability
to use contributions to corresponding GPL-licenced content (and in the most
extreme situation could decide to contribute only under GPL or to use
custom licence in future)

In a software world similar situation have happened at least once (BSD ->
GPL) resulting in a heated debated:
http://kerneltrap.org/Linux/Continuing_Dual-Licensing_Discussions,
http://kerneltrap.org/Linux/Clarifying_the_ath5k_Licensing,
http://kerneltrap.org/OpenBSD/Atheros_Driver_Developments

Another things is reliance on FSF taking wishes of CC community into
account when writing GPLv4 (and later). GPLv3 was very divisive when it was
release and some groups (e.g. Linux kernel developers) have decided against
upgrade from GPLv2. Of course similarly controversial changes could be made
to CC-BY-SA but at least there would be less uncertainty about what future
will bring with Creative Commons still being the only entity able to decide
about future of CC-BY-SA-licenced content.
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