I think that Lauda is trying to say that everyone can, by mistake, say something already said by someone else with your own words. That somehow I may say something very close to what Satoshi said in his whitepaper, for example, and be banned for plagiarism for that .

This may be considered plagiarism in an University.... And I agree that it is plagiarism, But not here.

The point is that this is not plagiarism in this forum. Plagiarism is being checked by bots and is only banning, afaik, only word to word copies.