Interesting question. I was also considering to use IPFS js while developing Peerdium. But it seems like it's not fully ready yet. For example, take a look at this

> DHT (automatic content discovery) and Circuit Relay (pierce through NATs and dial between any node in the network) are two fundamental pieces that are not finalized yet.

Another reason was that I had to still run an IPFS node if articles should be made available for more than 8 hours. I didn't want to do anything with storing articles.