I just get the sense that his interest in it is waning, and he doesn't want to just "check the box" every day. It's his right. Just because some people live in terrible conditions, doesn't mean he can't be sick of his job.
I'm curious, would it have bothered you as much if he'd just said: "I'm sick of this blog and I'm quitting it?" because that's basically what he did, except he promised to come back (I wonder if he'll regret that promise in six months).