GitHub allows you to select any license (including a proprietary license) or no license at all. This does not mean that GitHub encourages one to select a free software license or any license at all.
Anti-copyleft bias noted by Stallman and Sullivan is evident from the very beginning, from the founder Tom Preston-Werner himself. In 2011, Preston-Werner wrote that one should "open source (almost) everything" under a permissive license, because the GPL is "too dogmatic," but keep "anything that represents business value" proprietary.
There is more than enough freedom in GitHub to set a license as you see fit. Stallman is being obtuse.
GitHub allows you to select any license (including a proprietary license) or no license at all. This does not mean that GitHub encourages one to select a free software license or any license at all.
In 2014, John Sullivan, then Executive Director of FSF, also asserted that GitHub's choosealicense.com was anti-copyleft.
Anti-copyleft bias noted by Stallman and Sullivan is evident from the very beginning, from the founder Tom Preston-Werner himself. In 2011, Preston-Werner wrote that one should "open source (almost) everything" under a permissive license, because the GPL is "too dogmatic," but keep "anything that represents business value" proprietary.