I would like to release some content (graphics, text, and print designs), letting people reuse them with or without modifications. I don't require attribution, but I do want modified versions to also be ShareAlike.
Creative Commons has a "CC-SA" (no "BY"), but it's retired and not recommended for use.
CreativeCommons just says it was retired for low usage, is there any reason I shouldn't use "CC-SA"? Is there a better alternative?