Really? Was that ever true? This article seems supremely silly.
It's so easy to start a blog. Naturally, many are quickly abandoned or rarely updated or unreadable or just unread. Why would anyone think that just starting a blog is anything — other than a personal gesture of expressive openness? Why would anyone ever have realistically thought now I'll be famous or soon I can quit my job?
I don't see any new trend here. It's the same as it always was. (Including the way the NYT wishes blogs would die.)