If you're serious about people "just starting blogs" you need a proof of concept that centralizes various blogs into an updating feed of subscribed blogs.
This isn't insurmountable. It's actually pretty simple, in a technical sense. The real trick is to get blogs to play along by providing an api endpoint that will enable a feeds to be generated in the ways that people use them (latest, hashtags, interest relevancy, searchability, etc), as well as endpoints that allow users to interact with them (comments, notifications, etc). Some of that is currently done with RSS, others will need a new (preferably less verbose) form of syndication.
You could even use simple iframes as the delivery mechanism for the blog content, that way the blogs still get their ad-impressions. So long as the posts showed up in a curated feed, without needing to actually click through to anything, it would be fine. The only other thing you would need is a sign-up process that is as simple as facebook or twitter. To the point where you might not even be sure you're creating a "blog", if that wasn't your explicit intention.
So yeah; when that platform/protocol becomes available, I'd say blogs are the silver bullet! Until then, the idea that we should all go back to scouring the net for bookmark-able content, or dealing with the static interaction of an RSS feed, is a non-starter. We didn't make/choose social media because it was useless. We did it because it was easy. That has to be a priority in any suggested alternative.