[schneidmaster]

This is true, but there's a core fundamental issue. There has never been any legal support for the idea that the government can compel speech (such as forcing the continued false inclusion of a "binary" canary). There is a clear basis of support for the idea that the government can regulate speech, whether it's English or cryptic colored circles. So trying to speak (publish canary info) in any sort of cryptic way will still always be more risky than choosing not to speak (omit your canary). The government could always drag you to court over anything, but you still want to keep them at the downhill end of the battle.