Well, gone as in, he hasn't posted here since late April of this year. His account is still there.
I read the post you linked to, and it bummed me out. I really hate to see him go. Josh is one of the good guys, and was the person who led me to Free Republic many years ago.
Before he moved his blogsite and changed its name, he posted an opus essay explaining that he was leaving FR because of the in-house blog gestapo and management’s apparent hostility to bloggers.