2018.07.30 23:27:21 (1024043797511118849) from Daniel J. Bernstein, replying to unknown (1024015804138962945):
This German court case is directly on point: a public-domain dedication means that the software is free to use. It would be bizarre if this granted _less_ freedom than BSD, GPL, etc. I see no citations to courts expressing different opinions. No-US-gov-copyright is a red herring.