Non-Latin characters problem (id's and stuff)

[Zegnåt]

If someone were to ever copyright echo "hello world"; then we are all screwed.

Never going to happen. Zeldman explained why you can’t copyright a tweet not that long ago, because you cannot copyright a short sentence. And I bet that goes for code to. The only thing you could try is to get a trademark on the sentence, but I don’t think that will ever pass the people who decide over trademarks. (Although, in theory, if you would have enough money…)