I'm not part of the Ruby community and I don't know Zed, nor did I know _why, all that being said, insulting Zed or saying inflammatory stuff about Zed doesn't change any of the facts. Just cause Zed has a opinion that differs from a lot of people about _why's retreat from the online world, it doesn't make him a dick or an Idiot.
If a known troll attacks a good guy in a nasty tone without knowing all the facts and it's clear he wants the attention to be turned to him because he's jealous, I think it's fair to call him an idiot.