I think these things are very related, but Microformats isn't going to solve this problem on its own. After all, it's been around for quite a while, just like most of these conventions.

10-15 years ago, we had a bunch of different ways everyone was trying to schematize their data on the web, and since we never all agreed to just use one of them, everyone now uses fragments of all of them — and of other pseudo-proprietary systems — in their own unique ways.