even GPL has not really been tested in court (VMware case doesn't count yet), so the odds of CC0 being tested is low. however, there are (at least) two good rea

even GPL has not really been tested in court (VMware case doesn't count yet), so the odds of CC0 being tested is low. however, there are (at least) two good reasons for using CC0 anyways: 1. there is arguably a chilling effect if you make up your own license. I don't know how much that applies in this case, but look at how json is being removed from Debian and has been banned from Fedora for the undefinable phrasing in its license. this leads me to 2. just because it has not been tested doesn't mean it isn't a good idea; I am not aware of anyone who has been killed by a PC falling on their head, but if I were to attempt mounting a PC on my ceiling, I would seek help rather than cobbling something I just made up. even better, if there are plans on the internet that tens of engineers have verified to be reasonable, I should use those instead of complaining that they are too "fashionable".