1. He was so whimsical. Some people just can't cope with whimsy. To them, the world is a serious place for serious business (like programming). Others wanted to dance to his tune, and were glad to join the parade, but wanted someone out else front. _why was a great drum major.
2. When he took down his repos without any warning, the serious people felt as though _why had breached some kind of un-written contract, and the parade folks felt like the children of divorcees: abandoned, and wondering if somehow it was their fault.
When emotions get involved, you get the polarization. Simple as that. Whatever else you say about the guy, he was a great storyteller.
I think he knew that they were in git, so nothing would really be lost.
_why gave Rubyists permission to have fun, make messes, and not take yourself seriously. Thanks _why for inspiring me to Try Ruby. I'm teaching my 8 year old son some Ruby today in your honor.