The superuser site topic definition says we can ask about computer software, so long as it doesn't run on electronic devices. Can anyone provide an example of a non-electronic device that runs "computer software"? If not, then the rules would seem to say that we can't ask about computer software that actually runs...
Or maybe, if we read between the lines, there are specific OSes that are banned? But if that were the case, then why not just list said OSes?