He changed jobs, went back to college, started another job. Just like many of the other writers here- circumstances change.
I hadn't kept up on his blogging, so I wasn't aware of those details, which sound impressive. Certainly more than I've done lately. I guess I was targeting him for what others on the web have been doing, assuming he fits into that category, without fully researching it.
(As an aside, cmsix can hardly blame health issues, as he rarely finished anything before then. He's got a history of unfinished stories, which I've commented on before. But in that case, I've blamed it on what I perceive as his inability to satisfactorily end a story he's never managed to get right.)
In Nick's case, given the new info., I'll amend my objection. He simply shouldn't have started the newest book, or at least not started posting it online, until he had the time to properly finish it. Many of us start projects knowing our writing will have to wait, but expecting readers to wait years until we finish is expected a lot. I, and many others here, prefer finishing a story before posting. If you have the time, it's not as bad, since you know you're likely to post on a regular basis.
However, I was clearly unfairly targeting Nick. Although I used to visit his site fairly often (mainly to check out his daily photos), I haven't visited much since giving up on series.