I have also updated my stance, which I'm glad I did because I have since then posted work that I definitely want to retain copyright to.
Anything that I have already given permission to publish, I would like to clarify I released under Creative Commons, rather than a single-use copyright license. Do with it what thou wilt, more or less.
For anything which I have not yet given permission to publish, I will need to clarify at the time of granting permission whether I am releasing it as a single-use copyright license or under Creative Commons.