20+ years ago, a guy who disagree with me copied Ruby repo & replaced my name in copyright notices. He wanted his version of the lang. Technically it was license violation but I didn't say anything. I was curious about his ideas. No move for months. The repo disappeared. 1/ I have never met him since. But I am sure he realized the complex design constraints of the language only when he was responsible to every change he make. I named it 'xruby syndrome' after his fork of the language. 2/