I made something similar to what's described in the article: https://static.network (https://github.com/olivernyc/static)

It's an IPFS based social network, running entirely in the browser. Posts are JSON objects of content and metadata, with links to the previous post and the author's profile. Currently updates are propagated over a single pubsub channel, so it only works for real time communication. I plan to replace this with IPNS once it is implemented in js-ipfs.

Long term, I want to implement a web of trust to facilitate search, discovery and spam control. Here's some good reading about how this might be done without central authorities: https://www.scuttlebutt.nz/stories/using-trust-in-open-netwo...