Ask HN: Microformats - Still useful?

What happened to microformats? I was looking for a standard set of database models to use for contact info, addresses, etc… and I ran across them again.

http://microformats.org/

Their website is still there but it looks pretty quiet: Maybe a news blurb every few months or so. A few of the OSS projects I see implementing them are quiet since right around 2008-2009 as well.

I used to hear about them from time to time. I think there was some chatter that Google Chrome would be detecting them and parsing them out of web pages. It always seemed like a decent idea that maybe missed its chance. Has anyone here put them into their site lately? Anyone have any insight into what happened?